1165 lines
165 KiB
XML
1165 lines
165 KiB
XML
<document id="FB8A22B44F8BBC1A2110464330EA019A" ID-DOI="10.5252/geodiversitas2024v46a6" ID-ISSN="1638-9395" ID-Zenodo-Dep="11106598" ID-ZooBank="urn:lsid:zoobank.org:pub:6ACF6A79-9149-4781-808D-478668673EB6" IM.bibliography_approvedBy="juliana" IM.illustrations_approvedBy="juliana" IM.materialsCitations_approvedBy="juliana" IM.metadata_approvedBy="juliana" IM.tables_approvedBy="juliana" IM.taxonomicNames_approvedBy="juliana" IM.treatments_approvedBy="juliana" checkinTime="1714640714399" checkinUser="plazi" docAuthor="Scavezzoni, Isaure, Fischer, Valentin, Johnson, Michela M. & Jouve, Stéphane" docDate="2024" docId="038A56761D53FF82FC8F93D4FAD35401" docLanguage="en" docName="geodiversitas.2024.46.6.pdf" docOrigin="Geodiversitas 46 (6)" docSource="https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2024v46a6.pdf" docStyle="DocumentStyle:F830B10FF475E64C1F1601E3B32DDC00.4:Geodiversitas.2018-.journal_article" docStyleId="F830B10FF475E64C1F1601E3B32DDC00" docStyleName="Geodiversitas.2018-.journal_article" docStyleVersion="4" docTitle="Lemmysuchus obtusidens (Andrews)" docType="treatment" docVersion="4" lastPageNumber="250" masterDocId="FFB32E0E1D3CFFF7FFA29243FFC5576E" masterDocTitle="Form and function of the pelvic girdle of Thalattosuchia and Dyrosauridae (Crocodyliformes)" masterLastPageNumber="326" masterPageNumber="135" pageNumber="244" updateTime="1714681770497" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:titleInfo id="385CE0FA11DE6F79FE7C8BB14206F5CA">
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<mods:title id="0ABF22E59E208A200B8AF453632E078E">Form and function of the pelvic girdle of Thalattosuchia and Dyrosauridae (Crocodyliformes)</mods:title>
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<mods:name id="90293F22090552B1FD91FE9CB57731CC" type="personal">
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<mods:namePart id="91F591ECD5FB4662387F0705DD29CAD7">Scavezzoni, Isaure</mods:namePart>
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<mods:affiliation id="11544BD81CCD64904D0C5C8D6C779B7D">Universite de Liège, Evolution and Diversity Dynamics Lab, All. du Six Août 14, 4000 Liège (Belgique) isaure. scavezzoni @ gmail. com v. fischer @ uliege. be</mods:affiliation>
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<mods:nameIdentifier id="576801FDE6442C8B49C3FA31510AE52B" type="email">isaure.scavezzoni@gmail.com</mods:nameIdentifier>
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<mods:namePart id="C10AF48530C7522158EF0929C38406B2">Fischer, Valentin</mods:namePart>
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<mods:affiliation id="EB203AC2D5312F0CD14DB88B44FCB2CB">Universite de Liège, Evolution and Diversity Dynamics Lab, All. du Six Août 14, 4000 Liège (Belgique) isaure. scavezzoni @ gmail. com v. fischer @ uliege. be</mods:affiliation>
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<mods:nameIdentifier id="69515E10D0E0C34D6E30D2E0367AAE59" type="email">v.fischer@uliege.be</mods:nameIdentifier>
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<mods:roleTerm id="707D92846896D4ABF28D8844D37717E3">Author</mods:roleTerm>
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<mods:namePart id="069478767530A46271EE9CC22840DF31">Johnson, Michela M.</mods:namePart>
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<mods:affiliation id="14A17DFC93AF032657CB12E7900BD2D9">Department of Palaeontology, Staatliches Museum für Naturkunde Stuttgart, Museum am LÖwentor, Rosenstein 1, 70191 Stuttgart (Germany) michela. johnson @ smns-bw. de</mods:affiliation>
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<mods:nameIdentifier id="34C67156AC0904406EE7784AA382ADB9" type="email">michela.johnson@smns-bw.de</mods:nameIdentifier>
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<mods:namePart id="A6C11602F27F5AF5E89B734BC76E9409">Jouve, Stéphane</mods:namePart>
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<mods:affiliation id="6D6A0072E2F348CE30907E0D623C9F2B">Sorbonne Universite, BUPMC - Pôle Collections, Tour Zamansky, 15 étage, bureau 1513, 4 place Jussieu, 75252 Paris Cedex 05 (France) stephane. jouve @ sorbonne-universite. fr</mods:affiliation>
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<mods:nameIdentifier id="0B1E132D8F7338BDFE7DAC7ECDE8C025" type="email">stephane.jouve@sorbonne-universite.fr</mods:nameIdentifier>
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<mods:title id="C302DA495B0E92230A5FEAAE02769E09">Geodiversitas</mods:title>
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<mods:part id="2A29FCF756F5A6C816F77DA482C8B698">
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<mods:date id="157139B85F279A8E8FF3B886A7FB1CD5">2024</mods:date>
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<mods:number id="71FE021B680290A40A0B459923416571">2024-05-02</mods:number>
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<mods:number id="3F318E0A222CE885AAD82AB7CD9B339E">46</mods:number>
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<mods:url id="6B5ABEAFF3DB6E8BE95D17AFD59DC102">https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2024v46a6.pdf</mods:url>
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<mods:classification id="3777450A6B9D57CE8F9210094F227AEE">journal article</mods:classification>
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<mods:identifier id="FD8FE5E8C19A05ACE2BD86E103EEE172" type="DOI">10.5252/geodiversitas2024v46a6</mods:identifier>
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<mods:identifier id="CC4A23C49C86DFCEBB8DD74755E64CB2" type="ISSN">1638-9395</mods:identifier>
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<treatment id="038A56761D53FF82FC8F93D4FAD35401" ID-DOI="http://doi.org/10.5281/zenodo.11106291" ID-Zenodo-Dep="11106291" LSID="urn:lsid:plazi:treatment:038A56761D53FF82FC8F93D4FAD35401" httpUri="http://treatment.plazi.org/id/038A56761D53FF82FC8F93D4FAD35401" lastPageId="117" lastPageNumber="250" pageId="111" pageNumber="244">
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<subSubSection id="C339B4EB1D53FF98FC8F93D4FAD256DF" box="[813,1303,407,433]" pageId="111" pageNumber="244" type="nomenclature">
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<paragraph id="8B9CE7601D53FF98FC8F93D4FAD256DF" blockId="111.[813,1303,407,465]" box="[813,1303,407,433]" pageId="111" pageNumber="244">
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<taxonomicName id="4C239CE31D53FF98FC8F93D4FAD256DF" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[813,1303,407,433]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="obtusidens">
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<emphasis id="B9573B721D53FF98FC8F93D4FB8856C1" box="[813,1101,407,432]" italics="true" pageId="111" pageNumber="244">
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<smallCapsWord id="8D7A71BC1D53FF98FC8F93D4FC0C56C1" baselines="426,426" box="[813,969,407,432]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Lemmysuchus" pageId="111" pageNumber="244">LEMMYSUCHUS</smallCapsWord>
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<smallCapsWord id="8D7A71BC1D53FF98FC6D93DFFB8856C1" baselines="426" box="[975,1101,412,431]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="obtusidens" pageId="111" pageNumber="244">OBTUSIDENS</smallCapsWord>
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</emphasis>
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(
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<bibRefCitation id="EFB29A911D53FF98FBFC93D4FACA56DF" author="ANDREWS C. W." box="[1118,1295,407,433]" pageId="111" pageNumber="244" pagination="299 - 308" refId="ref108338" refString="ANDREWS C. W. 1909. - XXXVIII - On some new Steneosaurs from the Oxford Clay of Peterborough. Annals and Magazine of Natural History 3: 299 - 308. https: // doi. org / 10.1080 / 00222930908692579" type="journal article" year="1909">
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<smallCapsWord id="8D7A71BC1D53FF98FBFC93D4FB0D56C1" baselines="426,426" box="[1118,1224,407,433]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Andrews" pageId="111" pageNumber="244">ANDREWS</smallCapsWord>
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, 1909
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</bibRefCitation>
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)
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</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="C339B4EB1D53FF82FC8F93F4FAD35401" lastPageId="117" lastPageNumber="250" pageId="111" pageNumber="244" type="description">
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<paragraph id="8B9CE7601D53FF98FC8F93F4FB5956BF" blockId="111.[813,1303,407,465]" box="[813,1180,438,465]" pageId="111" pageNumber="244">
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For measurements, see
|
||
<tableCitation id="C6A1D2DB1D53FF98FB8793F5FB5056BF" box="[1061,1173,438,465]" captionStart-0="TABLE" captionStart-1="TABLE" captionStart-2="TABLE" captionStartId-0="19.[61,72,462,479]" captionStartId-1="25.[61,72,457,474]" captionStartId-2="29.[61,72,511,528]" captionTargetPageId-0="19" captionTargetPageId-1="25" captionTargetPageId-2="29" captionText-0="TABLE 7. — List of measurements in mm of crocodyliformes ilia. Abbreviations: Ha, anterior height; Hv, ventral length; Hd, dorsal length; PST.l, postacetabular process anteroposterior length; PST.h, postacetabular process dorsoventral height; PRE.l, preacetabular process anteroposterior length; PRE.h, preacetabular process dorsoventral height; ACE.h, acetabulum dorsoventral height; ACE.w, acetabulum width at mid-height; GAP.w, base length of acetabular perforation; GAP.h, max height of acetabular perforation; PUB.l, pubic peduncle anteroposterior length; PUB.h, pubic peduncle dorsoventral height; ISC.l, ischial peduncle anteroposterior length; ISC.h, Ischial peduncle dorsoventral height." captionText-1="TABLE 8. — List of measurements in mm of crocodyliformes ischia. When measurements are missing on the first ischium, it takes measurements from next ischium. NHMUK PV R 4763 shaft reconstructed.Abbreviations: Hd, total height from posterior peduncle to tip of posterior process; PP.h, height of posterior process tip; AP.h, base height of anterior process; AP.w, total length of anterior process; BL.l, total length of ischial blade; GAP.w, base length of acetabular perforation; GAP.h, max height of acetabular perforation;PPed.Ll, anteroposterior length of posterior peduncle taken laterally;PPed.Wa, mediolateral width of posterior peduncle taken anteriorly; BR.l, total length of peduncle bridge; APed.w, mediolateral width of anterior peduncle; APed.h, dorsoventral height of anterior peduncle; Arch.l, anterior arch length from anterior peduncle to anterior process; Arch.h, maximal depth between base arch and bone margin; S, length from proximal extremity to maximal constriction; C, anteroposterior width of constriction." captionText-2="TABLE 9. — List of measurements in mm of crocodyliformes pubes. When measurements are missing on the first bone, it takes measurements from the next one. SMNS 81608 has been reconstructed. Abbreviations: H, total proximodistal height; Wh, mediolateral width at mid length; Ldia, length of diaphysis; Lbl, freehand length of distal blade up to diaphysis; Dbl, distance between both medial and lateral extremities of distal blade; Wprox, anteroposterior width of proximal peduncle; Lprox, mediolateral length of proximal peduncle; Shaft, proximodistal length of shaft; Neck, proximodistal length of neck; C, anteroposterior width of constriction; Arch.l, anterior arch length from peduncle to pubic diaphysis; Arch.h, maximal depth between base arch and bone margin; Arch.d, distance between proximal base of arch and position of max depth along the arch." httpUri-0="http://table.plazi.org/id/DF5CB7E81D2FFFE4FF9F938DFDDF554D" httpUri-1="http://table.plazi.org/id/DF5CB7E81D25FFEEFF9F938AFAB1555A" httpUri-2="http://table.plazi.org/id/DF5CB7E81D21FFEAFF9F93BCF8FE553A" pageId="111" pageNumber="244" tableUuid-0="DF5CB7E81D2FFFE4FF9F938DFDDF554D" tableUuid-1="DF5CB7E81D25FFEEFF9F938AFAB1555A" tableUuid-2="DF5CB7E81D21FFEAFF9F93BCF8FE553A">Tables 7-9</tableCitation>
|
||
.
|
||
</paragraph>
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||
<paragraph id="8B9CE7601D53FF98FC8F93B5FCA2557E" blockId="111.[813,871,502,528]" box="[813,871,502,528]" pageId="111" pageNumber="244">
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<heading id="D0D4500C1D53FF98FC8F93B5FCA2557E" box="[813,871,502,528]" fontSize="11" level="2" pageId="111" pageNumber="244" reason="8">
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<emphasis id="B9573B721D53FF98FC8F93B5FCA2557E" box="[813,871,502,528]" italics="true" pageId="111" pageNumber="244">Ilium</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8B9CE7601D53FF98FC8F9055FBD853C0" blockId="111.[811,1458,534,2028]" pageId="111" pageNumber="244">
|
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The ilium of
|
||
<taxonomicName id="4C239CE31D53FF98FC189055FB7D555E" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[954,1208,534,560]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D53FF98FC189055FB7D555E" box="[954,1208,534,560]" italics="true" pageId="111" pageNumber="244">Lemmysuchus obtusidens</emphasis>
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||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D53FF98FB6A9055FAD3555F" box="[1224,1302,534,561]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="111" pageNumber="244">Figs 59</figureCitation>
|
||
;
|
||
<figureCitation id="1318FBE51D53FF98FA869055FA85555E" box="[1316,1344,534,560]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="111" pageNumber="244">60</figureCitation>
|
||
) possesses the typical feature of Teleosauroidea among Thalattosuchia: the presence of a well-developed (about 36 % of the total anteroposterior length of the ilium) postacetabular process. The postacetabular process is an extension of the ilium, posterior and dorsal to the ischial peduncle. In
|
||
<taxonomicName id="4C239CE31D53FF98FA8390F6FC505581" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D53FF98FA8390F6FC505581" italics="true" pageId="111" pageNumber="244">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
, it takes the shape of a
|
||
<emphasis id="B9573B721D53FF98FBDD9095FB315581" box="[1151,1268,725,751]" italics="true" pageId="111" pageNumber="244">Lancet arch</emphasis>
|
||
, similar to several teleosauroids (e.g.
|
||
<taxonomicName id="4C239CE31D53FF98FC4D90B6FB5D5461" authority="Von Meyer, 1845" authorityName="Von Meyer" authorityYear="1845" box="[1007,1176,757,783]" genus="Sericodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="jugleri">
|
||
<emphasis id="B9573B721D53FF98FC4D90B6FB5D5461" box="[1007,1176,757,783]" italics="true" pageId="111" pageNumber="244">Sericodon jugleri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D53FF98FB0790B6FC135441" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D53FF98FB0790B6FA6D5461" box="[1189,1448,757,783]" italics="true" pageId="111" pageNumber="244">Charitomenosuchus leedsi</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D53FF98FC8F9156FC135441" box="[813,982,789,815]" italics="true" pageId="111" pageNumber="244">Proexochokefalos</emphasis>
|
||
</taxonomicName>
|
||
cf.
|
||
<emphasis id="B9573B721D53FF98FC589156FBA45441" box="[1018,1121,789,815]" italics="true" pageId="111" pageNumber="244">bouchardi</emphasis>
|
||
, and
|
||
<taxonomicName id="4C239CE31D53FF98FB3B9155FA5B5441" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[1177,1438,789,815]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D53FF98FB3B9155FA5B5441" box="[1177,1438,789,815]" italics="true" pageId="111" pageNumber="244">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
), extant crocodylians and dyrosaurids (e.g.
|
||
<taxonomicName id="4C239CE31D53FF98FB6F9175FA6D5421" box="[1229,1448,821,847]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D53FF98FB6F9175FA6D5421" box="[1229,1448,821,847]" italics="true" pageId="111" pageNumber="244">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D53FF98FC8F9116FBD65401" authorityName="MRAC" authorityYear="1806" box="[813,1043,853,879]" class="Reptilia" family="Dyrosauridae" genus="Congosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="bequaerti">
|
||
<emphasis id="B9573B721D53FF98FC8F9116FBD65401" box="[813,1043,853,879]" italics="true" pageId="111" pageNumber="244">Congosaurus bequaerti</emphasis>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C239CE31D53FF98FBE89115FAD55401" box="[1098,1296,854,879]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D53FF98FBE89115FAD55401" box="[1098,1296,854,879]" italics="true" pageId="111" pageNumber="244">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
). The presence of a postacetabular process strongly influences the shape of the bone, so that ilia bearing a postacetabular process develop a long dorsal blade. Thereby, the dorsal margin of the ilium forms a convex arch posteriorly to the preacetabular process. The posterior-most portion of the ilium constitutes the peak of the
|
||
<emphasis id="B9573B721D53FF98FCD29656FC225340" box="[880,999,1044,1070]" italics="true" pageId="111" pageNumber="244">Lancet arch</emphasis>
|
||
, which points strictly posteriorly unlike in
|
||
<taxonomicName id="4C239CE31D53FF98FC8E9677FC1F5320" authority="Von Meyer, 1845" authorityName="Von Meyer" authorityYear="1845" box="[812,986,1076,1102]" genus="Sericodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="jugleri">
|
||
<emphasis id="B9573B721D53FF98FC8E9677FC1F5320" box="[812,986,1076,1102]" italics="true" pageId="111" pageNumber="244">Sericodon jugleri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D53FF98FC499677FA6A5320" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[1003,1455,1076,1103]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D53FF98FC499677FB305320" box="[1003,1269,1076,1102]" italics="true" pageId="111" pageNumber="244">Charitomenosuchus leedsi</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D53FF98FAA79677FA6A5320" box="[1285,1455,1076,1102]" italics="true" pageId="111" pageNumber="244">Proexochokefalos</emphasis>
|
||
</taxonomicName>
|
||
cf.
|
||
<emphasis id="B9573B721D53FF98FCF29617FC7F5300" box="[848,954,1108,1134]" italics="true" pageId="111" pageNumber="244">bouchardi</emphasis>
|
||
, and
|
||
<taxonomicName id="4C239CE31D53FF98FC5D9616FACA5300" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[1023,1295,1108,1134]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D53FF98FC5D9616FACA5300" box="[1023,1295,1108,1134]" italics="true" pageId="111" pageNumber="244">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
. The junction between the posteacetabular process and the ischial peduncle forms a smooth curve.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D53FF98FCE196F7FB7F50C5" blockId="111.[811,1458,534,2028]" pageId="111" pageNumber="244">
|
||
The ventral margin of the ilium is undulating: it is composed of the ischial peduncle posteriorly and the pubic peduncle anteriorly. The acetabular perforation separating the two peduncles is shallow, unlike that of other teleosauroids (e.g.
|
||
<taxonomicName id="4C239CE31D53FF98FC8F9770FBE15223" authority="(Jager, 1828)" authorityName="(Jager)" baseAuthorityName="Jager" baseAuthorityYear="1828" box="[813,1060,1331,1357]" class="Reptilia" family="Teleosauridae" genus="Macrospondylus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="bollensis">
|
||
<emphasis id="B9573B721D53FF98FC8F9770FBE15223" box="[813,1060,1331,1357]" italics="true" pageId="111" pageNumber="244">Macrospondylus bollensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D53FF98FB8D9777FAEA5223" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[1071,1327,1331,1357]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D53FF98FB8D9777FAEA5223" box="[1071,1327,1331,1357]" italics="true" pageId="111" pageNumber="244">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D53FF98FA989770FC015203" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D53FF98FA989770FC015203" italics="true" pageId="111" pageNumber="244">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
, etc.),
|
||
<taxonomicName id="4C239CE31D53FF98FBA99717FBA95203" box="[1035,1132,1364,1389]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="111" pageNumber="244" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9573B721D53FF98FBA99717FBA95203" box="[1035,1132,1364,1389]" italics="true" pageId="111" pageNumber="244">Mecistops</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C239CE31D53FF98FB329717FABC5203" authorityName="MRAC" authorityYear="1806" box="[1168,1401,1363,1390]" class="Reptilia" family="Dyrosauridae" genus="Congosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="bequaerti">
|
||
<emphasis id="B9573B721D53FF98FB329717FABC5203" box="[1168,1401,1363,1390]" italics="true" pageId="111" pageNumber="244">Congosaurus bequaerti</emphasis>
|
||
</taxonomicName>
|
||
. The small size of the acetabular perforation diminishes the space between the peduncles, and thereby renders the acetabulum of
|
||
<taxonomicName id="4C239CE31D53FF98FCEF97F0FB9252A3" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[845,1111,1459,1485]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D53FF98FCEF97F0FB9252A3" box="[845,1111,1459,1485]" italics="true" pageId="111" pageNumber="244">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
relatively smaller. The ventral margins of both peduncles are oriented in the same overall direction (like in metriorhynchoids), rather than being tilted at a different angle (as in
|
||
<taxonomicName id="4C239CE31D53FF98FB899450FAC95142" box="[1067,1292,1554,1580]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D53FF98FB899450FAC95142" box="[1067,1292,1554,1580]" italics="true" pageId="111" pageNumber="244">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C239CE31D53FF98FA8D9450FC4B5122" authorityName="MRAC" authorityYear="1806" class="Reptilia" family="Dyrosauridae" genus="Congosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="bequaerti">
|
||
<emphasis id="B9573B721D53FF98FA8D9450FC4B5122" italics="true" pageId="111" pageNumber="244">Congosaurus bequaerti</emphasis>
|
||
</taxonomicName>
|
||
). Yet, the ventral border of the ischial peduncle is situated more dorsally than the pubic peduncle, and is mediolaterally thinner. This difference in relative height between the peduncles is compensated by the ischium and its protruding anterior peduncle (set on the peduncle bridge). The anterior margin of the ilium is straight (as in
|
||
<taxonomicName id="4C239CE31D53FF98FB119491FA545182" authorityName="Von Quenstedt" authorityYear="1856" baseAuthorityName="Plieninger" baseAuthorityYear="1846" box="[1203,1425,1746,1772]" class="Reptilia" family="Metriorhynchidae" genus="Dakosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="maximus">
|
||
<emphasis id="B9573B721D53FF98FB119491FA545182" box="[1203,1425,1746,1772]" italics="true" pageId="111" pageNumber="244">Dakosaurus maximus</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C239CE31D53FF98FC8F94B0FBF35062" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[813,1078,1778,1804]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D53FF98FC8F94B0FBF35062" box="[813,1078,1778,1804]" italics="true" pageId="111" pageNumber="244">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
) rather than convex as in ‘
|
||
<taxonomicName id="4C239CE31D53FF98FAC294B0FB175042" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D53FF98FAC294B0FC415042" italics="true" pageId="111" pageNumber="244">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D53FF98FC2D9551FBE25042" box="[911,1063,1810,1836]" italics="true" pageId="111" pageNumber="244">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763,
|
||
<taxonomicName id="4C239CE31D53FF98FAB89551FC7C5025" authority="YOUNG, DE ANDRADE, BRUSATTE, SAKAMOTO & LISTON, 2012" authorityName="Young, Andrade, Brusatte, Sakamoto & Liston" authorityYear="2012" family="Metriorhynchidae" genus="Tyrannoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="lythrodectikos">
|
||
<emphasis id="B9573B721D53FF98FAB89551FC7C5025" italics="true" pageId="111" pageNumber="244">Tyrannoneustes lythrodectikos</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D53FF98FC6B9572FB795025" authorityName="Lydekker" authorityYear="1890" box="[969,1212,1841,1867]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D53FF98FC6B9572FB795025" box="[969,1212,1841,1867]" italics="true" pageId="111" pageNumber="244">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C239CE31D53FF98FB469572FCA75005" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="111" pageNumber="244" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D53FF98FB469572FCA75005" italics="true" pageId="111" pageNumber="244">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
, and ends up with the preacetabular process dorsally. The junction between the anterior margin and the preacetabular process forms a rounded acute angle.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D53FF86FCE195F2FD8154E1" blockId="111.[811,1458,534,2028]" lastBlockId="113.[130,777,215,2028]" lastPageId="113" lastPageNumber="246" pageId="111" pageNumber="244">
|
||
The preacetabular process is proportionally small in relation to the overall size of the ilium (about 16% of the anteroposterior length of the bone), unlike what is observed in some metriorhynchoids (e.g. ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FE7692B4FEAC565C" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FE7692B4FDBC567F" box="[468,633,247,273]" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FD2B92B4FF75565F" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763 and
|
||
<taxonomicName id="4C239CE31D4DFF86FE429354FD0B565F" authorityName="Lydekker" authorityYear="1890" box="[480,718,279,305]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FE429354FD0B565F" box="[480,718,279,305]" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
) and teleosauroids (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FEEE9374FD96563F" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[332,595,311,337]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4DFF86FEEE9374FD96563F" box="[332,595,311,337]" italics="true" pageId="113" pageNumber="246">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FDC3937BFF27561F" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4DFF86FDC3937BFF27561F" italics="true" pageId="113" pageNumber="246">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
). Moreover, the orientation of the preacetabular process of
|
||
<taxonomicName id="4C239CE31D4DFF86FF579334FE3156FF" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[245,500,375,401]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FF579334FE3156FF" box="[245,500,375,401]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
further differs from what is observed in metriorhynchoids as it has no dorsal component in its orientation, and is facing strictly anteroventrally in the direct extension of the iliac crest (making it parallel to the ventral margins of the peduncles;
|
||
<figureCitation id="1318FBE51D4DFF86FD9D93B5FD4E557E" box="[575,651,502,528]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="113" pageNumber="246">Fig. 60</figureCitation>
|
||
). The shallow junction between the preacetabular process and the iliac crest emphasizes their relative linearity as in
|
||
<taxonomicName id="4C239CE31D4DFF86FDC39074FF1A551E" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4DFF86FDC39074FF1A551E" italics="true" pageId="113" pageNumber="246">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FF4C9015FD91551E" authority="(Westphal, 1961)" authorityName="(Westphal)" baseAuthorityName="Westphal" baseAuthorityYear="1961" box="[238,596,598,624]" genus="Plagiophthalmosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="gracilirostris">
|
||
<emphasis id="B9573B721D4DFF86FF4C9015FD91551E" box="[238,596,598,624]" italics="true" pageId="113" pageNumber="246">Plagiophthalmosuchus gracilirostris</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FDC19015FF1E55FE" authority="(Jager, 1828)" authorityName="(Jager)" baseAuthorityName="Jager" baseAuthorityYear="1828" class="Reptilia" family="Teleosauridae" genus="Macrospondylus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="bollensis">
|
||
<emphasis id="B9573B721D4DFF86FDC19015FF1E55FE" italics="true" pageId="113" pageNumber="246">Macrospondylus bollensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FF4E9035FDF555FE" baseAuthorityName="Berckhemer" baseAuthorityYear="1929" box="[236,560,630,656]" class="Reptilia" family="Teleosauridae" genus="Platysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="multiscrobiculatus">
|
||
<emphasis id="B9573B721D4DFF86FF4E9035FDF555FE" box="[236,560,630,656]" italics="true" pageId="113" pageNumber="246">Platysuchus multiscrobiculatus</emphasis>
|
||
</taxonomicName>
|
||
. The preacetabular process of
|
||
<taxonomicName id="4C239CE31D4DFF86FF5290D5FE2E55DE" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[240,491,662,688]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FF5290D5FE2E55DE" box="[240,491,662,688]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
is flattened dorsoventrally, and is wide lateromedially as in
|
||
<taxonomicName id="4C239CE31D4DFF86FE6E90F6FD3B55A1" baseAuthorityName="Berckhemer" baseAuthorityYear="1929" box="[460,766,693,719]" class="Reptilia" family="Teleosauridae" genus="Platysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="multiscrobiculatus">
|
||
<emphasis id="B9573B721D4DFF86FE6E90F6FD3B55A1" box="[460,766,693,719]" italics="true" pageId="113" pageNumber="246">Platysuchus multiscrobiculatus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FF269096FE315581" authority="(Westphal, 1961)" authorityName="(Westphal)" baseAuthorityName="Westphal" baseAuthorityYear="1961" box="[132,500,725,751]" genus="Plagiophthalmosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="gracilirostris">
|
||
<emphasis id="B9573B721D4DFF86FF269096FE315581" box="[132,500,725,751]" italics="true" pageId="113" pageNumber="246">Plagiophthalmosuchus gracilirostris</emphasis>
|
||
</taxonomicName>
|
||
, or
|
||
<taxonomicName id="4C239CE31D4DFF86FD849096FF095461" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4DFF86FD849096FF095461" italics="true" pageId="113" pageNumber="246">Thalattosuchus superciliosus</emphasis>
|
||
</taxonomicName>
|
||
. This effect is less pronounced in
|
||
<taxonomicName id="4C239CE31D4DFF86FD9C90B6FF7E5441" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4DFF86FD9C90B6FF7E5441" italics="true" pageId="113" pageNumber="246">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D4DFF86FF519155FE395441" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[243,508,789,815]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4DFF86FF519155FE395441" box="[243,508,789,815]" italics="true" pageId="113" pageNumber="246">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
so that even though the ventral surface of their preacetabular process is relatively flat, their dorsal surface remains rounded thus giving a cylindrical appearance to their preacetabular process.
|
||
</paragraph>
|
||
<caption id="DF5CB7E81D4CFF87FF2695E8FC225087" ID-DOI="http://doi.org/10.5281/zenodo.11106722" ID-Zenodo-Dep="11106722" httpUri="https://zenodo.org/record/11106722/files/figure.png" pageId="112" pageNumber="245" startId="112.[132,143,1963,1980]" targetBox="[151,1438,216,1871]" targetPageId="112" targetType="figure">
|
||
<paragraph id="8B9CE7601D4CFF87FF2695E8FC225087" blockId="112.[132,1455,1963,2025]" pageId="112" pageNumber="245">
|
||
<smallCapsWord id="8D7A71BC1D4CFF87FF2695E8FF5850D5" baselines="1976,1976" box="[132,157,1963,1980]" lowerCaseFontSize="5" mainFontSize="7" normCase="title" normString="Fig" pageId="112" pageNumber="245">FIG</smallCapsWord>
|
||
. 57. — Reconstruction of the pelvic girdle of
|
||
<taxonomicName id="4C239CE31D4CFF87FD8395E8FBD550D2" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[545,1040,1963,1980]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="112" pageNumber="245" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4CFF87FD8395E8FCC650D2" box="[545,771,1963,1980]" italics="true" pageId="112" pageNumber="245">Neosteneosaurus edwardsi</emphasis>
|
||
(
|
||
<bibRefCitation id="EFB29A911D4CFF87FCB295E8FBC950D2" author="EUDES-DESLONGCHAMPS J. - A." box="[784,1036,1963,1980]" pageId="112" pageNumber="245" pagination="112 - 118" refId="ref110221" refString="EUDES-DESLONGCHAMPS J. - A. 1868. - Remarques sur l'os de la machoire inferieure des Teleosauriens, designe sous le nom de complementaire. Bulletin de la Societe linneenne de Normandie, ser. 2, 1 (1): 112 - 118. https: // gallica. bnf. fr / ark: / 12148 / bpt 6 k 54802107 / f 133. item" type="journal article" year="1868">Eudes-Deslongchamps, 1868</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, NHMUK PV R 3701 (
|
||
<emphasis id="B9573B721D4CFF87FB6B95E8FB1350D2" bold="true" box="[1225,1238,1963,1980]" pageId="112" pageNumber="245">A</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FB4095E8FB3550D2" bold="true" box="[1250,1264,1963,1980]" pageId="112" pageNumber="245">C</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FB5995E8FAC250D2" bold="true" box="[1275,1287,1963,1980]" pageId="112" pageNumber="245">E</emphasis>
|
||
) and NHMUK PV R 2076 (
|
||
<emphasis id="B9573B721D4CFF87FF1A9581FF0050BD" bold="true" box="[184,197,1986,2003]" pageId="112" pageNumber="245">B</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FF729581FF1B50BD" bold="true" box="[208,222,1986,2003]" pageId="112" pageNumber="245">D</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FF4B9581FF3150BD" bold="true" box="[233,244,1986,2003]" pageId="112" pageNumber="245">F</emphasis>
|
||
):
|
||
<emphasis id="B9573B721D4CFF87FEA19581FED550BD" bold="true" box="[259,272,1986,2003]" pageId="112" pageNumber="245">A</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FEB99581FEED50BD" bold="true" box="[283,296,1986,2003]" pageId="112" pageNumber="245">B</emphasis>
|
||
, right lateral views;
|
||
<emphasis id="B9573B721D4CFF87FE6D9581FE1850BD" bold="true" box="[463,477,1986,2003]" pageId="112" pageNumber="245">C</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FE4A9581FE3350BD" bold="true" box="[488,502,1986,2003]" pageId="112" pageNumber="245">D</emphasis>
|
||
, anterior views;
|
||
<emphasis id="B9573B721D4CFF87FDDD9581FD4E50BD" bold="true" box="[639,651,1986,2003]" pageId="112" pageNumber="245">E</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4CFF87FD349581FD6450BD" bold="true" box="[662,673,1986,2003]" pageId="112" pageNumber="245">F</emphasis>
|
||
, ventral views. Target indicates anterior. Arrow points anteriorly. The right pubis and left ilium of NHMUK PV R 3701 are mirrored. The right pubis of NHMUK PV R 2076 is mirrored. Scale bars: 5 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8B9CE7601D4DFF86FF3991D6FE045283" blockId="113.[130,777,215,2028]" pageId="113" pageNumber="246">
|
||
The acetabulum of
|
||
<taxonomicName id="4C239CE31D4DFF86FEC991D6FDAC54C1" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[363,617,917,943]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FEC991D6FDAC54C1" box="[363,617,917,943]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
is large (about 72% of the dorsoventral height of the ilium), and encompasses almost all of the area extending from the preacetabular process through the ventral peduncles. Also, the acetabulum appears centred on the triangular surface defined by the preacetabular process and the ventral peduncles (like in
|
||
<taxonomicName id="4C239CE31D4DFF86FDC09677FF1D5300" authority="(Jager, 1828)" authorityName="(Jager)" baseAuthorityName="Jager" baseAuthorityYear="1828" class="Reptilia" family="Teleosauridae" genus="Macrospondylus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="bollensis">
|
||
<emphasis id="B9573B721D4DFF86FDC09677FF1D5300" italics="true" pageId="113" pageNumber="246">Macrospondylus bollensis</emphasis>
|
||
</taxonomicName>
|
||
), as opposed to
|
||
<taxonomicName id="4C239CE31D4DFF86FE339617FD455300" authorityName="Lydekker" authorityYear="1890" box="[401,640,1108,1134]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FE339617FD455300" box="[401,640,1108,1134]" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FD2D9617FEDA53E0" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4DFF86FD2D9617FEDA53E0" italics="true" pageId="113" pageNumber="246">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D4DFF86FEFB9636FF5D53C0" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4DFF86FEFB9636FDA053E0" box="[345,613,1140,1166]" italics="true" pageId="113" pageNumber="246">Neosteneosaurus edwardsi</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3898. This phenomenon is imputable to the relative size of the acetabulum, but also to the position, orientation and extension of the supraacetabular crest, which is a parabolic ridge delimiting the acetabulum. Indeed, the supraacetabular crest of
|
||
<taxonomicName id="4C239CE31D4DFF86FF719750FE085243" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[211,461,1299,1325]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FF719750FE085243" box="[211,461,1299,1325]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
displays a large focal width so that its anterior border closely follows the anterior margin of the ilium, while the posterior border shows a trajectory path aiming at the junction between the ischial peduncle and the base of the postacetabular process. It is also possible that the relative inclination of the anterior margin of the ilium may emphasize this phenomenon.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4DFF86FF3997B0FDFA50C5" blockId="113.[130,777,215,2028]" pageId="113" pageNumber="246">
|
||
The configuration of
|
||
<taxonomicName id="4C239CE31D4DFF86FED697B0FDAF5163" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[372,618,1523,1549]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FED697B0FDAF5163" box="[372,618,1523,1549]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(i.e. large focal width) is similar to extant crocodylians (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FDC89450FF1C5122" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D4DFF86FDC89450FF1C5122" italics="true" pageId="113" pageNumber="246">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FF479470FE645122" box="[229,417,1586,1613]" class="Crocodylia" family="Alligatoridae" genus="Caiman" kingdom="Animalia" order="Eusuchia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="crocodilus">
|
||
<emphasis id="B9573B721D4DFF86FF479470FE645122" box="[229,417,1586,1613]" italics="true" pageId="113" pageNumber="246">Caiman crocodilus</emphasis>
|
||
</taxonomicName>
|
||
and dyrosaurids (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FD249470FF265102" authorityName="MRAC" authorityYear="1806" class="Reptilia" family="Dyrosauridae" genus="Congosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="bequaerti">
|
||
<emphasis id="B9573B721D4DFF86FD249470FF265102" italics="true" pageId="113" pageNumber="246">Congosaurus bequaerti</emphasis>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C239CE31D4DFF86FEBE9410FE265102" box="[284,483,1619,1644]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D4DFF86FEBE9410FE265102" box="[284,483,1619,1644]" italics="true" pageId="113" pageNumber="246">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
),
|
||
<emphasis id="B9573B721D4DFF86FE589410FDFF5102" box="[506,570,1619,1644]" italics="true" pageId="113" pageNumber="246">contra</emphasis>
|
||
what is observed in some metriorhynchoids (e.g. ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FE1C9431FEE851C3" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FE1C9431FD9B51E2" box="[446,606,1650,1676]" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FDC89431FCC251E2" box="[618,775,1650,1676]" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804,
|
||
<taxonomicName id="4C239CE31D4DFF86FED594D0FD5851C2" authority="YOUNG, DE ANDRADE, BRUSATTE, SAKAMOTO & LISTON, 2012" authorityName="Young, Andrade, Brusatte, Sakamoto & Liston" authorityYear="2012" box="[375,669,1682,1708]" family="Metriorhynchidae" genus="Tyrannoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="lythrodectikos">
|
||
<emphasis id="B9573B721D4DFF86FED594D0FD5851C2" box="[375,669,1682,1708]" italics="true" pageId="113" pageNumber="246">Tyrannoneustes lythrodectikos</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FD0B94D1FEC951A2" authorityName="Lydekker" authorityYear="1890" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FD0B94D1FEC951A2" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
, etc.) for which the supraacetabular crest is posteriorly shifted and contact the anterior margin of the ilium relatively ventrally. The supraacetabular crest of
|
||
<taxonomicName id="4C239CE31D4DFF86FDDA94B1FF285042" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FDDA94B1FF285042" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
also bears the typical prominent anterior ridge and the smooth posterior one, as it can be seen from many crocodyliforms (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FE869511FDCE5005" box="[292,523,1873,1899]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D4DFF86FE869511FDCE5005" box="[292,523,1873,1899]" italics="true" pageId="113" pageNumber="246">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FDB59511FCC55005" authorityName="MRAC" authorityYear="1806" box="[535,768,1873,1900]" class="Reptilia" family="Dyrosauridae" genus="Congosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="bequaerti">
|
||
<emphasis id="B9573B721D4DFF86FDB59511FCC55005" box="[535,768,1873,1900]" italics="true" pageId="113" pageNumber="246">Congosaurus bequaerti</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FF269531FE8350E5" box="[132,326,1906,1931]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D4DFF86FF269531FE8350E5" box="[132,326,1906,1931]" italics="true" pageId="113" pageNumber="246">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
, ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FEF59532FF0550C2" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FEF59532FE3650E5" box="[343,499,1905,1931]" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FE5C9532FD5250E5" box="[510,663,1905,1931]" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763,
|
||
<taxonomicName id="4C239CE31D4DFF86FEAF95D2FE3E50C5" authorityName="Lydekker" authorityYear="1890" box="[269,507,1937,1963]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FEAF95D2FE3E50C5" box="[269,507,1937,1963]" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
, etc.).
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4DFF86FF3995F1FB05559E" blockId="113.[130,777,215,2028]" lastBlockId="113.[810,1458,215,1612]" pageId="113" pageNumber="246">
|
||
In
|
||
<taxonomicName id="4C239CE31D4DFF86FF1E95F2FE7A50A5" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[188,447,1969,1995]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FF1E95F2FE7A50A5" box="[188,447,1969,1995]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
, almost half of the surface of the acetabulum is not hollow, but is obstructed by a laterally protruding hump of bone (
|
||
<figureCitation id="1318FBE51D4DFF86FBEE9294FB5D579C" box="[1100,1176,215,242]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="113" pageNumber="246">Figs 59</figureCitation>
|
||
;
|
||
<figureCitation id="1318FBE51D4DFF86FB069294FB05579F" box="[1188,1216,215,241]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="113" pageNumber="246">60</figureCitation>
|
||
). This seemingly bony growth disrupts the function of the acetabulum as a cavity and presumably happened later in the life of the specimen. It is unknown if this hump is the result of a trauma or the ossification of cartilaginous (e.g. osteoarthritis of the hip) structures through ageing processes. In theory, there could have been a good dorsoventral congruence between the femoral head and acetabulum if the acetabular labrum were at least as extensive as it is for extant crocodylians (
|
||
<bibRefCitation id="EFB29A911D4DFF86FAA29395FCA3557F" author="TSAI H. P. & HOLLIDAY C. M." pageId="113" pageNumber="246" pagination="1 - 30" refId="ref116719" refString="TSAI H. P. & HOLLIDAY C. M. 2015. - Articular soft tissue anatomy of the archosaur hip joint: Structural homology and functional implications. Journal of Morphology 276 (6): 1 - 30. https: // doi. org / 10.1002 / jmor. 20360" type="journal article" year="2015">Tsai & Holliday 2015</bibRefCitation>
|
||
). The existence of a deeply scarred area extending from the pubic peduncle of the ischium through the preacetabular process and the supraacetabular crest in
|
||
<taxonomicName id="4C239CE31D4DFF86FABD9075FC52551E" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FABD9075FC52551E" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D4DFF86FC049015FC31551F" box="[934,1012,598,625]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="113" pageNumber="246">Figs 59</figureCitation>
|
||
;
|
||
<figureCitation id="1318FBE51D4DFF86FBA39015FBD8551E" box="[1025,1053,598,624]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="113" pageNumber="246">60</figureCitation>
|
||
) and also other thalattosuchians (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FC8F9035FB8755FE" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" box="[813,1090,630,656]" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4DFF86FC8F9035FB8755FE" box="[813,1090,630,656]" italics="true" pageId="113" pageNumber="246">Thalattosuchus superciliosus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FBEC9035FAF255FE" authorityName="Lydekker" authorityYear="1890" box="[1102,1335,630,656]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FBEC9035FAF255FE" box="[1102,1335,630,656]" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FAE19034FC1455DE" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4DFF86FAE19034FC1455DE" italics="true" pageId="113" pageNumber="246">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
, etc.) teases the presence of a widely spread acetabular labrum (but does not inform on the mediolateral breath of this hypothetical structure).
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4DFF86FCE190B6FBE75122" blockId="113.[810,1458,215,1612]" pageId="113" pageNumber="246">
|
||
The attachment sites for the sacral processes are observable on the medial side of the ilium, and take up almost half of the entire surface (
|
||
<figureCitation id="1318FBE51D4DFF86FC5A9176FB80543E" box="[1016,1093,821,848]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="113" pageNumber="246">Fig. 59</figureCitation>
|
||
). In some metriorhynchoids (i.e. ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FC919116FAEE541E" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" box="[819,1323,853,880]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FC919116FC165401" box="[819,979,853,879]" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FC7D9116FBB95401" box="[991,1148,853,879]" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804, ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FADF9115FB3C54E1" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FADF9115FC6654E1" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FC0C9136FB8E54E1" box="[942,1099,885,911]" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763,
|
||
<taxonomicName id="4C239CE31D4DFF86FAE69135FC3354C1" authority="YOUNG, DE ANDRADE, BRUSATTE, SAKAMOTO & LISTON, 2012" authorityName="Young, Andrade, Brusatte, Sakamoto & Liston" authorityYear="2012" family="Metriorhynchidae" genus="Tyrannoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="lythrodectikos">
|
||
<emphasis id="B9573B721D4DFF86FAE69135FC3354C1" italics="true" pageId="113" pageNumber="246">Tyrannoneustes lythrodectikos</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C239CE31D4DFF86FBB891D6FACD54C1" authorityName="Lydekker" authorityYear="1890" box="[1050,1288,917,943]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FBB891D6FACD54C1" box="[1050,1288,917,943]" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
, etc.), the areas are characterized by being slightly in relief rather than being hollow like extant crocodylians and dyrosaurids (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FAF29196FC6C5360" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D4DFF86FAF29196FC6C5360" italics="true" pageId="113" pageNumber="246">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FC1591B6FB595360" authorityName="MRAC" authorityYear="1806" box="[951,1180,1012,1039]" class="Reptilia" family="Dyrosauridae" genus="Congosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="bequaerti">
|
||
<emphasis id="B9573B721D4DFF86FC1591B6FB595360" box="[951,1180,1012,1039]" italics="true" pageId="113" pageNumber="246">Congosaurus bequaerti</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FB0A91B6FAAB5360" box="[1192,1390,1013,1038]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D4DFF86FB0A91B6FAAB5360" box="[1192,1390,1013,1038]" italics="true" pageId="113" pageNumber="246">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
, etc.). There is a thin border made of hollows and bumps drawing the general outline of the sacral rib attachment sites. The delimitation between each attachment site can be deducted from the shape of the dorsal and ventral contours, but the internal demarcation is less clear as in
|
||
<taxonomicName id="4C239CE31D4DFF86FB6C96D7FC8653A0" authorityName="Lydekker" authorityYear="1890" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D4DFF86FB6C96D7FC8653A0" italics="true" pageId="113" pageNumber="246">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
. The exact contour of each attachment site is based on the careful observation of both the surface of the ilium and the distal extremities of both sacral as well as the first caudal. The general shape of the sacral rib attachment sites forms three lobes (
|
||
<figureCitation id="1318FBE51D4DFF86FCD69770FC055220" box="[884,960,1331,1358]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="113" pageNumber="246">Fig. 59</figureCitation>
|
||
), with the middle one being the greatest. The anterior lobe (the smallest) corresponds to the attachment site of the first sacral, the middle lobe belonged to the second sacral whereas the posterior one (which is cordiform) was the anchoring site for the first caudal. The anterior and middle lobes are composed of a series of radiate ridges, whereas the posterior lobe is more strongly pitted. The latter also roots deeper in the ilium than the other two, which are more superficially anchored.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4DFF86FC8F9431FCBB51E2" blockId="113.[813,894,1650,1676]" box="[813,894,1650,1676]" pageId="113" pageNumber="246">
|
||
<heading id="D0D4500C1D4DFF86FC8F9431FCBB51E2" box="[813,894,1650,1676]" fontSize="11" level="2" pageId="113" pageNumber="246" reason="8">
|
||
<emphasis id="B9573B721D4DFF86FC8F9431FCBB51E2" box="[813,894,1650,1676]" italics="true" pageId="113" pageNumber="246">Ischium</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4DFF84FC8F94D1FCC2551E" blockId="113.[811,1457,1682,2028]" lastBlockId="115.[130,777,215,2028]" lastPageId="115" lastPageNumber="248" pageId="113" pageNumber="246">
|
||
The ischium of
|
||
<taxonomicName id="4C239CE31D4DFF86FC4794D1FB3551C2" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[997,1264,1682,1708]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4DFF86FC4794D1FB3551C2" box="[997,1264,1682,1708]" italics="true" pageId="113" pageNumber="246">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D4DFF86FAA394D1FA9751C3" box="[1281,1362,1682,1709]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="113" pageNumber="246">Fig. 59</figureCitation>
|
||
) resembles that of other thalattosuchians (e.g.
|
||
<emphasis id="B9573B721D4DFF86FB4594F1FA6C51A2" box="[1255,1449,1714,1740]" italics="true" pageId="113" pageNumber="246">
|
||
<taxonomicName id="4C239CE31D4DFF86FB4594F1FAAE51A2" box="[1255,1387,1714,1740]" class="Reptilia" family="Metriorhynchidae" genus="Pelagosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="genus">Pelagosaurus</taxonomicName>
|
||
typus
|
||
</emphasis>
|
||
, ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FC969491FAA75182" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" box="[820,1378,1746,1772]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FC969491FC255182" box="[820,992,1746,1772]" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FC509491FB5E5182" box="[1010,1179,1746,1772]" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763, ‘
|
||
<taxonomicName id="4C239CE31D4DFF86FC9194B1FAC35063" authority="LEICT G." authorityName="LEICT G." box="[819,1286,1778,1805]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4DFF86FC9194B1FC115062" box="[819,980,1778,1804]" italics="true" pageId="113" pageNumber="246">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4DFF86FC4694B1FB475062" box="[996,1154,1778,1804]" italics="true" pageId="113" pageNumber="246">brachyrhynchus</emphasis>
|
||
LEICT G.
|
||
</taxonomicName>
|
||
418.1956.13.5,
|
||
<taxonomicName id="4C239CE31D4DFF86FC8C9551FB8C5042" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" box="[814,1097,1810,1836]" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4DFF86FC8C9551FB8C5042" box="[814,1097,1810,1836]" italics="true" pageId="113" pageNumber="246">Thalattosuchus superciliosus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FBF59551FAE25045" baseAuthorityName="Fraas" baseAuthorityYear="1901" box="[1111,1319,1810,1836]" class="Reptilia" family="Metriorhynchidae" genus="Cricosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="suevicus">
|
||
<emphasis id="B9573B721D4DFF86FBF59551FAE25045" box="[1111,1319,1810,1836]" italics="true" pageId="113" pageNumber="246">Cricosaurus suevicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FA949551FC4F5025" authorityName="Von Quenstedt" authorityYear="1856" baseAuthorityName="Plieninger" baseAuthorityYear="1846" class="Reptilia" family="Metriorhynchidae" genus="Dakosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="maximus">
|
||
<emphasis id="B9573B721D4DFF86FA949551FC4F5025" italics="true" pageId="113" pageNumber="246">Dakosaurus maximus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FC379571FBBB5025" baseAuthorityName="Wilkinson, Young & Benton" baseAuthorityYear="2008" box="[917,1150,1842,1867]" class="Reptilia" family="Metriorhynchidae" genus="Torvoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="carpenteri">
|
||
<emphasis id="B9573B721D4DFF86FC379571FBBB5025" box="[917,1150,1842,1867]" italics="true" pageId="113" pageNumber="246">Torvoneustes carpenteri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FB2B9572FAEB5025" box="[1161,1326,1841,1867]" class="Reptilia" family="Teleosauridae" genus="Aeolodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="priscus">
|
||
<emphasis id="B9573B721D4DFF86FB2B9572FAEB5025" box="[1161,1326,1841,1867]" italics="true" pageId="113" pageNumber="246">Aeolodon priscus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FA9B9572FC055005" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4DFF86FA9B9572FC055005" italics="true" pageId="113" pageNumber="246">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF86FC6E9511FB085005" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[972,1229,1873,1899]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4DFF86FC6E9511FB085005" box="[972,1229,1873,1899]" italics="true" pageId="113" pageNumber="246">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
, etc.): the distal blade is elongated anteroposteriorly, giving the impression of an axe head. This shape is not found among
|
||
<taxonomicName id="4C239CE31D4DFF86FB5395D2FA4750C5" authorityName="de Stefano" authorityYear="1903" box="[1265,1410,1937,1963]" class="Reptilia" family="Dyrosauridae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="113" pageNumber="246" phylum="Chordata" rank="family">Dyrosauridae</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D4DFF86FC8F95F2FC6250A5" box="[813,935,1969,1995]" class="Crocodylia" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="113" pageNumber="246" phylum="Chordata" rank="class">Crocodylia</taxonomicName>
|
||
, as the shaft of the ischium is usually longer and the distal blade shorter (e.g.
|
||
<taxonomicName id="4C239CE31D4DFF86FBC09591FA8E5085" box="[1122,1355,2001,2027]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D4DFF86FBC09591FA8E5085" box="[1122,1355,2001,2027]" italics="true" pageId="113" pageNumber="246">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4DFF84FAF89592FF2D579F" class="Crocodylia" family="Alligatoridae" genus="Caiman" kingdom="Animalia" lastPageId="115" lastPageNumber="248" order="Eusuchia" pageId="113" pageNumber="246" phylum="Chordata" rank="species" species="crocodilus">
|
||
<emphasis id="B9573B721D4DFF84FAF89592FF2D579F" italics="true" lastPageId="115" lastPageNumber="248" pageId="113" pageNumber="246">Caiman crocodilus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FF54929BFE05579F" box="[246,448,216,241]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D4FFF84FF54929BFE05579F" box="[246,448,216,241]" italics="true" pageId="115" pageNumber="248">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
, etc.). Proximally, the ischium of
|
||
<taxonomicName id="4C239CE31D4FFF84FF0292B4FE5B567F" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[160,414,247,273]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FF0292B4FE5B567F" box="[160,414,247,273]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
bears two peduncles separated by a notch: the acetabular perforation (
|
||
<figureCitation id="1318FBE51D4FFF84FDAE9354FD9D565C" box="[524,600,279,306]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="115" pageNumber="248">Fig. 59</figureCitation>
|
||
). This hollow is actually tilted towards the sagittal plane and is thus entirely borne by the medial surface of the ischium, similar to several other thalattosuchians (e.g. ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FE1B9334FEEF56DF" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FE1B9334FD9F56FF" box="[441,602,375,401]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FDCB9334FCC256FF" box="[617,775,375,401]" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763,
|
||
<taxonomicName id="4C239CE31D4FFF84FECF93D5FF1456BF" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4FFF84FECF93D5FDB156DE" box="[365,628,406,432]" italics="true" pageId="115" pageNumber="248">Thalattosuchus superciliosus</emphasis>
|
||
NHMUK PV R 2054
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FF7D93F4FE6E56BE" baseAuthorityName="Fraas" baseAuthorityYear="1901" box="[223,427,439,465]" class="Reptilia" family="Metriorhynchidae" genus="Cricosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="suevicus">
|
||
<emphasis id="B9573B721D4FFF84FF7D93F4FE6E56BE" box="[223,427,439,465]" italics="true" pageId="115" pageNumber="248">Cricosaurus suevicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FE1A93F5FD5756BE" authorityName="Von Quenstedt" authorityYear="1856" baseAuthorityName="Plieninger" baseAuthorityYear="1846" box="[440,658,438,464]" class="Reptilia" family="Metriorhynchidae" genus="Dakosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="maximus">
|
||
<emphasis id="B9573B721D4FFF84FE1A93F5FD5756BE" box="[440,658,438,464]" italics="true" pageId="115" pageNumber="248">Dakosaurus maximus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FD3C93F4FED1569E" baseAuthorityName="Wilkinson, Young & Benton" baseAuthorityYear="2008" class="Reptilia" family="Metriorhynchidae" genus="Torvoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="carpenteri">
|
||
<emphasis id="B9573B721D4FFF84FD3C93F4FED1569E" italics="true" pageId="115" pageNumber="248">Torvoneustes carpenteri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FE819394FD20569E" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[291,741,470,497]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4FFF84FE819394FDEE569E" box="[291,555,470,496]" italics="true" pageId="115" pageNumber="248">Neosteneosaurus edwardsi</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4FFF84FD999395FD20569E" box="[571,741,470,496]" italics="true" pageId="115" pageNumber="248">Proexochokefalos</emphasis>
|
||
</taxonomicName>
|
||
cf.
|
||
<emphasis id="B9573B721D4FFF84FF2693B5FF29557E" box="[132,236,502,528]" italics="true" pageId="115" pageNumber="248">bouchardi</emphasis>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FF5993B5FE52557F" box="[251,407,502,529]" class="Reptilia" family="Teleosauridae" genus="Teleosaurus" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="undetermined">
|
||
<emphasis id="B9573B721D4FFF84FF5993B5FEAA557E" box="[251,367,502,528]" italics="true" pageId="115" pageNumber="248">Teleosaurus</emphasis>
|
||
sp.
|
||
</taxonomicName>
|
||
, etc.). In extant crocodylians, this gap is covered by a membrane which protects the
|
||
<emphasis id="B9573B721D4FFF84FD2B9055FF00553E" italics="true" pageId="115" pageNumber="248">ligamentum capitis</emphasis>
|
||
of the femur from compression, and grants it sufficient space during episodes of movements (
|
||
<bibRefCitation id="EFB29A911D4FFF84FDB29015FD3D551F" author="TSAI H. P. & HOLLIDAY C. M." box="[528,760,598,625]" pageId="115" pageNumber="248" pagination="1 - 30" refId="ref116719" refString="TSAI H. P. & HOLLIDAY C. M. 2015. - Articular soft tissue anatomy of the archosaur hip joint: Structural homology and functional implications. Journal of Morphology 276 (6): 1 - 30. https: // doi. org / 10.1002 / jmor. 20360" type="journal article" year="2015">Tsai & Holliday 2015</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="DF5CB7E81D4EFF85FF2695E8FB9E5087" ID-DOI="http://doi.org/10.5281/zenodo.11106726" ID-Zenodo-Dep="11106726" httpUri="https://zenodo.org/record/11106726/files/figure.png" pageId="114" pageNumber="247" startId="114.[132,143,1963,1980]" targetBox="[148,1436,209,1897]" targetPageId="114" targetType="figure">
|
||
<paragraph id="8B9CE7601D4EFF85FF2695E8FB9E5087" blockId="114.[132,1455,1963,2025]" pageId="114" pageNumber="247">
|
||
<smallCapsWord id="8D7A71BC1D4EFF85FF2695E8FF5850D5" baselines="1976,1976" box="[132,157,1963,1980]" lowerCaseFontSize="5" mainFontSize="7" normCase="title" normString="Fig" pageId="114" pageNumber="247">FIG</smallCapsWord>
|
||
. 58. — Reconstruction of the pelvic girdle of
|
||
<taxonomicName id="4C239CE31D4EFF85FD8395E8FBD550D2" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[545,1040,1963,1980]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="114" pageNumber="247" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4EFF85FD8395E8FCC650D2" box="[545,771,1963,1980]" italics="true" pageId="114" pageNumber="247">Neosteneosaurus edwardsi</emphasis>
|
||
(
|
||
<bibRefCitation id="EFB29A911D4EFF85FCB295E8FBC950D2" author="EUDES-DESLONGCHAMPS J. - A." box="[784,1036,1963,1980]" pageId="114" pageNumber="247" pagination="112 - 118" refId="ref110221" refString="EUDES-DESLONGCHAMPS J. - A. 1868. - Remarques sur l'os de la machoire inferieure des Teleosauriens, designe sous le nom de complementaire. Bulletin de la Societe linneenne de Normandie, ser. 2, 1 (1): 112 - 118. https: // gallica. bnf. fr / ark: / 12148 / bpt 6 k 54802107 / f 133. item" type="journal article" year="1868">Eudes-Deslongchamps, 1868</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, NHMUK PV R 3898 (
|
||
<emphasis id="B9573B721D4EFF85FB6B95E8FB1350D2" bold="true" box="[1225,1238,1963,1980]" pageId="114" pageNumber="247">A</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FB4095E8FB3550D2" bold="true" box="[1250,1264,1963,1980]" pageId="114" pageNumber="247">C</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FB5995E8FAC250D2" bold="true" box="[1275,1287,1963,1980]" pageId="114" pageNumber="247">E</emphasis>
|
||
) and NHMUK PV R 2865 (
|
||
<emphasis id="B9573B721D4EFF85FF1A9581FF0050BD" bold="true" box="[184,197,1986,2003]" pageId="114" pageNumber="247">B</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FF6D9581FF1850BD" bold="true" box="[207,221,1986,2003]" pageId="114" pageNumber="247">D</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FF4A9581FF3650BD" bold="true" box="[232,243,1986,2003]" pageId="114" pageNumber="247">F</emphasis>
|
||
):
|
||
<emphasis id="B9573B721D4EFF85FEA09581FECA50BD" bold="true" box="[258,271,1986,2003]" pageId="114" pageNumber="247">A</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FEBB9581FEE350BD" bold="true" box="[281,294,1986,2003]" pageId="114" pageNumber="247">B</emphasis>
|
||
, right lateral views;
|
||
<emphasis id="B9573B721D4EFF85FE6E9581FE1F50BD" bold="true" box="[460,474,1986,2003]" pageId="114" pageNumber="247">C</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FE479581FE3650BD" bold="true" box="[485,499,1986,2003]" pageId="114" pageNumber="247">D</emphasis>
|
||
, anterior views;
|
||
<emphasis id="B9573B721D4EFF85FDD99581FD4250BD" bold="true" box="[635,647,1986,2003]" pageId="114" pageNumber="247">E</emphasis>
|
||
,
|
||
<emphasis id="B9573B721D4EFF85FD309581FD5850BD" bold="true" box="[658,669,1986,2003]" pageId="114" pageNumber="247">F</emphasis>
|
||
, ventral views. Target indicates anterior. Arrow points anteriorly. The right ilium and ischium of NHMUK PV R 3898 are mirrored. The right pubis and left ischium of NHMUK PV R 2865 is mirrored. Scale bars: 5 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8B9CE7601D4FFF84FF399035FA57553E" blockId="115.[130,777,215,2028]" lastBlockId="115.[810,1458,215,2028]" pageId="115" pageNumber="248">
|
||
The anterior peduncle is borne on an anteriorly protruding process called the peduncle bridge.Overall,the anterior peduncle of
|
||
<taxonomicName id="4C239CE31D4FFF84FF3C90F6FE5455A1" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[158,401,693,719]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FF3C90F6FE5455A1" box="[158,401,693,719]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
does not significantly protrude from the anterior process of the ischium (
|
||
<figureCitation id="1318FBE51D4FFF84FE539096FDFD5581" box="[497,568,725,751]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="115" pageNumber="248">Fig. 60</figureCitation>
|
||
), compared to what is observed in dyrosaurids or extant crocodylians (e.g.
|
||
<taxonomicName id="4C239CE31D4FFF84FD6790B5FEE85441" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D4FFF84FD6790B5FEE85441" italics="true" pageId="115" pageNumber="248">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FE989155FE315441" box="[314,500,789,816]" class="Crocodylia" family="Alligatoridae" genus="Caiman" kingdom="Animalia" order="Eusuchia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="crocodilus">
|
||
<emphasis id="B9573B721D4FFF84FE989155FE315441" box="[314,500,789,816]" italics="true" pageId="115" pageNumber="248">Caiman crocodilus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FDA39155FD035441" box="[513,710,790,815]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D4FFF84FDA39155FD035441" box="[513,710,790,815]" italics="true" pageId="115" pageNumber="248">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
, etc.). Also, similar to other thalattosuchians, the anterior peduncle of
|
||
<taxonomicName id="4C239CE31D4FFF84FF209116FEBC5401" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[130,377,853,879]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FF209116FEBC5401" box="[130,377,853,879]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
appears markedly reduced in size (e.g. ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FF289136FDB154E1" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" box="[138,628,885,911]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FF289136FEE054E1" box="[138,293,885,911]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FE939136FE0F54E1" box="[305,458,885,911]" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763,
|
||
<taxonomicName id="4C239CE31D4FFF84FD1E9136FE9054C1" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4FFF84FD1E9136FE9054C1" italics="true" pageId="115" pageNumber="248">Thalattosuchus superciliosus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FEC291D5FD8254C1" baseAuthorityName="Wilkinson, Young & Benton" baseAuthorityYear="2008" box="[352,583,918,943]" class="Reptilia" family="Metriorhynchidae" genus="Torvoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="carpenteri">
|
||
<emphasis id="B9573B721D4FFF84FEC291D5FD8254C1" box="[352,583,918,943]" italics="true" pageId="115" pageNumber="248">Torvoneustes carpenteri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FDF091D6FF6754A0" baseAuthorityName="Fraas" baseAuthorityYear="1901" class="Reptilia" family="Metriorhynchidae" genus="Cricosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="suevicus">
|
||
<emphasis id="B9573B721D4FFF84FDF091D6FF6754A0" italics="true" pageId="115" pageNumber="248">Cricosaurus suevicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FF0C91F6FE4254A0" authorityName="Von Quenstedt" authorityYear="1856" baseAuthorityName="Plieninger" baseAuthorityYear="1846" box="[174,391,949,975]" class="Reptilia" family="Metriorhynchidae" genus="Dakosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="maximus">
|
||
<emphasis id="B9573B721D4FFF84FF0C91F6FE4254A0" box="[174,391,949,975]" italics="true" pageId="115" pageNumber="248">Dakosaurus maximus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FE3191F6FDF354A0" box="[403,566,949,975]" class="Reptilia" family="Teleosauridae" genus="Aeolodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="priscus">
|
||
<emphasis id="B9573B721D4FFF84FE3191F6FDF354A0" box="[403,566,949,975]" italics="true" pageId="115" pageNumber="248">Aeolodon priscus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FDE191F6FF7C5480" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4FFF84FDE191F6FF7C5480" italics="true" pageId="115" pageNumber="248">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FF679197FE795480" authority="(Jager, 1828)" authorityName="(Jager)" baseAuthorityName="Jager" baseAuthorityYear="1828" box="[197,444,980,1006]" class="Reptilia" family="Teleosauridae" genus="Macrospondylus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="bollensis">
|
||
<emphasis id="B9573B721D4FFF84FF679197FE795480" box="[197,444,980,1006]" italics="true" pageId="115" pageNumber="248">Macrospondylus bollensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FE6A9196FD025480" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[456,711,980,1006]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4FFF84FE6A9196FD025480" box="[456,711,980,1006]" italics="true" pageId="115" pageNumber="248">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
, etc.). Yet, the anterior peduncle of
|
||
<taxonomicName id="4C239CE31D4FFF84FE1891B7FD775360" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[442,690,1012,1038]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FE1891B7FD775360" box="[442,690,1012,1038]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
is more developed than metriorhynchoids, namely in being mediolaterally thicker as in other teleosauroids. The facet of the anterior peduncle is rugged, indicating the presence of a cartilage cap
|
||
<taxonomicName id="4C239CE31D4FFF84FF279636FF0953E0" baseAuthorityName="Tsai & Holliday" baseAuthorityYear="2015" box="[133,204,1141,1166]" family="Teleosauridae" genus="Indosinosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="115" pageNumber="264" phylum="Chordata" rank="species" species="vivo">
|
||
<emphasis id="B9573B721D4FFF84FF279636FF0953E0" box="[133,204,1141,1166]" italics="true" pageId="115" pageNumber="248">in vivo</emphasis>
|
||
</taxonomicName>
|
||
. In anterior view, the articular surface of the anterior peduncle is wedge-shaped with its concavity dorsally facing and its greatest axis oriented lateromedially. The articular facet of the anterior peduncle is however asymmetrical: its medial corner is sharp whereas its lateral one is more rounded.At about its mid-length lateromedially, the medial half of the articular surface of the anterior peduncle is posteriorly deflected similar to
|
||
<taxonomicName id="4C239CE31D4FFF84FF019710FE6F5203" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[163,426,1363,1389]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4FFF84FF019710FE6F5203" box="[163,426,1363,1389]" italics="true" pageId="115" pageNumber="248">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
. The lateral half of the articular surface of the anterior peduncle presumably corresponds to the anchoring site of the peduncle of the pubis (
|
||
<figureCitation id="1318FBE51D4FFF84FDDC97D0FD0D52C3" box="[638,712,1427,1453]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="115" pageNumber="248">Fig. 60</figureCitation>
|
||
). The peduncle bridge of
|
||
<taxonomicName id="4C239CE31D4FFF84FEFE97F0FD9952A3" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[348,604,1459,1485]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FEFE97F0FD9952A3" box="[348,604,1459,1485]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D4FFF84FDCE97F0FD7C52A0" box="[620,697,1459,1486]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="115" pageNumber="248">Fig. 59</figureCitation>
|
||
) stems from the shaft of the ischium and bears the anterior peduncle on its extremity. Its ventral surface is relatively straight whereas its dorsal surface is strongly concave and borders the acetabular perforation ventrally. In dorsal view, the peduncle bridge appears to be slightly curved towards the medial side of the bone.Unlike in
|
||
<taxonomicName id="4C239CE31D4FFF84FE849431FDDA51E2" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[294,543,1650,1676]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4FFF84FE849431FDDA51E2" box="[294,543,1650,1676]" italics="true" pageId="115" pageNumber="248">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
, the lateral and medial margins of the dorsal surface of the peduncle bridge of
|
||
<taxonomicName id="4C239CE31D4FFF84FD7094D0FE8B51A2" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FD7094D0FE8B51A2" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D4FFF84FEF994F1FE6751A3" box="[347,418,1714,1741]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="115" pageNumber="248">Fig.59</figureCitation>
|
||
) are highly asymmetrical, with the lateral margin being almost on the same level as the articular surface of the posterior peduncle. As a result, the acetabular perforation of
|
||
<taxonomicName id="4C239CE31D4FFF84FEB49551FDCF5042" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[278,522,1810,1836]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FEB49551FDCF5042" box="[278,522,1810,1836]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D4FFF84FDB89551FDA45042" box="[538,609,1809,1836]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="115" pageNumber="248">Fig. 59</figureCitation>
|
||
) appears almost non-existent in lateral view as in
|
||
<emphasis id="B9573B721D4FFF84FE6B9571FEF35005" italics="true" pageId="115" pageNumber="248">
|
||
<taxonomicName id="4C239CE31D4FFF84FE6B9571FD015025" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[457,708,1841,1867]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="edwardsi">Neosteneosaurus edwardsi</taxonomicName>
|
||
contra
|
||
<taxonomicName id="4C239CE31D4FFF84FF209512FF3A5005" box="[130,255,1873,1899]" class="Reptilia" family="Metriorhynchidae" genus="Pelagosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="genus">Pelagosaurus</taxonomicName>
|
||
typus
|
||
</emphasis>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FEE19512FDF25005" authority="(Jager, 1828)" authorityName="(Jager)" baseAuthorityName="Jager" baseAuthorityYear="1828" box="[323,567,1873,1899]" class="Reptilia" family="Teleosauridae" genus="Macrospondylus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="bollensis">
|
||
<emphasis id="B9573B721D4FFF84FEE19512FDF25005" box="[323,567,1873,1899]" italics="true" pageId="115" pageNumber="248">Macrospondylus bollensis</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D4FFF84FDC49512FF2E50E5" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D4FFF84FDC49512FF2E50E5" italics="true" pageId="115" pageNumber="248">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
; this makes the ischium of
|
||
<taxonomicName id="4C239CE31D4FFF84FDAD9532FCC250E5" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[527,775,1905,1931]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FDAD9532FCC250E5" box="[527,775,1905,1931]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
superficially appear more similar to that of metriorhynchoids (e.g. ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FF6295F2FD0750A2" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" box="[192,706,1969,1996]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FF6295F2FE9B50A5" box="[192,350,1969,1995]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FECF95F2FDCD50A5" box="[365,520,1969,1995]" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763, ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FF299592FD9B5082" authority="LEICT G." authorityName="LEICT G." box="[139,606,2001,2028]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FF299592FEE95085" box="[139,300,2001,2027]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FE999592FE1C5085" box="[315,473,2001,2027]" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
LEICT G.
|
||
</taxonomicName>
|
||
418.1956.13.5,
|
||
<taxonomicName id="4C239CE31D4FFF84FC8C9294FAE9579C" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" box="[814,1324,215,242]" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4FFF84FC8C9294FB84579F" box="[814,1089,215,241]" italics="true" pageId="115" pageNumber="248">Thalattosuchus superciliosus</emphasis>
|
||
NHMUK PV R 2054
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FA98929BFCBB567F" baseAuthorityName="Fraas" baseAuthorityYear="1901" class="Reptilia" family="Metriorhynchidae" genus="Cricosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="suevicus">
|
||
<emphasis id="B9573B721D4FFF84FA98929BFCBB567F" italics="true" pageId="115" pageNumber="248">Cricosaurus suevicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FC2F92BBFBB9567F" baseAuthorityName="Wilkinson, Young & Benton" baseAuthorityYear="2008" box="[909,1148,248,273]" class="Reptilia" family="Metriorhynchidae" genus="Torvoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="carpenteri">
|
||
<emphasis id="B9573B721D4FFF84FC2F92BBFBB9567F" box="[909,1148,248,273]" italics="true" pageId="115" pageNumber="248">Torvoneustes carpenteri</emphasis>
|
||
</taxonomicName>
|
||
, etc.) while still being more developed than the latter (among other traits). Indeed, the acetabular perforation of
|
||
<taxonomicName id="4C239CE31D4FFF84FB9F9374FAF3563F" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[1085,1334,311,337]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FB9F9374FAF3563F" box="[1085,1334,311,337]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
is medially deflected like a burrow tilted towards the medial side of the bone which can be followed up until the junction between the peduncle bridge and the base of the posterior peduncle. Still, the peduncle bridge of
|
||
<taxonomicName id="4C239CE31D4FFF84FBB293F5FAC456BE" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[1040,1281,438,464]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FBB293F5FAC456BE" box="[1040,1281,438,464]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
possesses a larger concave dorsal surface than in metriorhynchoids, so that the peduncle bridge creates more room for the acetabular perforation compared to that of metriorhynchoids (which almost solely relies on the burrow on the medial surface of the ischium).
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4FFF84FCE19015FA6A54C1" blockId="115.[810,1458,215,2028]" pageId="115" pageNumber="248">
|
||
The posterior peduncle is both wide lateromedially and long anteroposteriorly, and its articular surface takes the shape of an isosceles trapezoid with its long base positioned anteriorly. Comparatively, the articular surface of the anterior peduncle is downsized with its dorsoventral height reaching about 39 % of the anteroposterior length of the posterior peduncle. Indeed, the articular surface of the anterior peduncle is not dorsally facing like the posterior peduncle, but is oriented anteriorly (with dorsal and ventral components) as in many crocodyliformes, such as
|
||
<taxonomicName id="4C239CE31D4FFF84FB999136FB0954E1" authorityName="de Stefano" authorityYear="1903" box="[1083,1228,885,911]" class="Reptilia" family="Dyrosauridae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="family">Dyrosauridae</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D4FFF84FAA19136FABF54E1" box="[1283,1402,885,911]" class="Crocodylia" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="115" pageNumber="248" phylum="Chordata" rank="class">Crocodylia</taxonomicName>
|
||
(e.g.
|
||
<taxonomicName id="4C239CE31D4FFF84FC8F91D5FBC954C1" box="[813,1036,917,943]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D4FFF84FC8F91D5FBC954C1" box="[813,1036,917,943]" italics="true" pageId="115" pageNumber="248">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FBBA91D6FB1454C1" box="[1048,1233,917,943]" class="Crocodylia" family="Alligatoridae" genus="Caiman" kingdom="Animalia" order="Eusuchia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="crocodilus">
|
||
<emphasis id="B9573B721D4FFF84FBBA91D6FB1454C1" box="[1048,1233,917,943]" italics="true" pageId="115" pageNumber="248">Caiman crocodilus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FB7F91D5FA5A54C1" box="[1245,1439,918,943]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D4FFF84FB7F91D5FA5A54C1" box="[1245,1439,918,943]" italics="true" pageId="115" pageNumber="248">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4FFF84FCE191F6FA515123" blockId="115.[810,1458,215,2028]" pageId="115" pageNumber="248">
|
||
The anterior process of the ischium forms anteriorly an acute peak which is slightly pointing dorsally, and is shaped by the concave anterior margin of the ischium underneath the anterior peduncle, and the relatively straight distal blade. Both the medial and lateral surfaces of the distal blade present a rugged texture near the distal border, hinting at the existence of a cartilage cap
|
||
<taxonomicName id="4C239CE31D4FFF84FC7D9636FBE053E0" baseAuthorityName="Tsai & Holliday" baseAuthorityYear="2015" box="[991,1061,1141,1166]" family="Teleosauridae" genus="Indosinosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="115" pageNumber="264" phylum="Chordata" rank="species" species="vivo">
|
||
<emphasis id="B9573B721D4FFF84FC7D9636FBE053E0" box="[991,1061,1141,1166]" italics="true" pageId="115" pageNumber="248">in vivo</emphasis>
|
||
</taxonomicName>
|
||
. Only the medial surface of the distal blade is deeply scarred though, as it indicates the area where both ischia were joined. The ischial suture of
|
||
<taxonomicName id="4C239CE31D4FFF84FA8696F7FC525380" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FA8696F7FC525380" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
extends over the entire length of the distal blade but is the thickest around the anterior third quarter. This area also presents the deepest indentations whereas the surrounding portions are less textured. The first quarter anteriorly starts at the base of the anterior process and is entirely smooth, similar to other thalattosuchians (e.g. ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FB219730FBCA52C0" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FB219730FAE152E3" box="[1155,1316,1395,1421]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FA969730FC9C52C3" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763, ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FBC097D0FC1152A3" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FBC097D0FAC652C3" box="[1122,1283,1427,1453]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FAB397D0FA6A52C3" box="[1297,1455,1427,1453]" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804,
|
||
<taxonomicName id="4C239CE31D4FFF84FBB897F0FAED52A3" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" box="[1050,1320,1459,1485]" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D4FFF84FBB897F0FAED52A3" box="[1050,1320,1459,1485]" italics="true" pageId="115" pageNumber="248">Thalattosuchus superciliosus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FA9197F7FC515283" baseAuthorityName="Wilkinson, Young & Benton" baseAuthorityYear="2008" class="Reptilia" family="Metriorhynchidae" genus="Torvoneustes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="carpenteri">
|
||
<emphasis id="B9573B721D4FFF84FA9197F7FC515283" italics="true" pageId="115" pageNumber="248">Torvoneustes carpenteri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D4FFF84FC039797FB6D5283" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[929,1192,1491,1517]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4FFF84FC039797FB6D5283" box="[929,1192,1491,1517]" italics="true" pageId="115" pageNumber="248">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
, etc.). The ischial suture and the lateral surface of the distal blade form an acute angle of approximately 35°, unlike in ‘
|
||
<taxonomicName id="4C239CE31D4FFF84FB249451FBD55123" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D4FFF84FB249451FAE25142" box="[1158,1319,1554,1580]" italics="true" pageId="115" pageNumber="248">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D4FFF84FA969451FC9C5122" italics="true" pageId="115" pageNumber="248">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
4763 and
|
||
<taxonomicName id="4C239CE31D4FFF84FB279470FA485122" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[1157,1421,1586,1612]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4FFF84FB279470FA485122" box="[1157,1421,1586,1612]" italics="true" pageId="115" pageNumber="248">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D4FFF84FCE19411FB085085" blockId="115.[810,1458,215,2028]" pageId="115" pageNumber="248">
|
||
The posterior margin of the ischium is undulated: starting from the posterior peduncle the surface is concave; at about the mid-length of the whole posterior margin, the concavity switches to convex, thus creating the rounded posterior distal extremity of the bone (which meets with the distal blade). The area extending posteriorly to the shaft is called the posterior process of the ischium. The shaft represent the thinnest portion of the ischium anteroposteriorly since it is formed by two concave margins anteriorly and posteriorly. Similar to
|
||
<taxonomicName id="4C239CE31D4FFF84FCEA9532FB8350E5" authority="(Jager, 1828)" authorityName="(Jager)" baseAuthorityName="Jager" baseAuthorityYear="1828" box="[840,1094,1905,1931]" class="Reptilia" family="Teleosauridae" genus="Macrospondylus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="bollensis">
|
||
<emphasis id="B9573B721D4FFF84FCEA9532FB8350E5" box="[840,1094,1905,1931]" italics="true" pageId="115" pageNumber="248">Macrospondylus bollensis</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D4FFF84FBD89531FA4550E5" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[1146,1408,1905,1931]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D4FFF84FBD89531FA4550E5" box="[1146,1408,1905,1931]" italics="true" pageId="115" pageNumber="248">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
, the shaft of the ischium of
|
||
<taxonomicName id="4C239CE31D4FFF84FB8695D2FAE750C5" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[1060,1314,1937,1963]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="115" pageNumber="248" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D4FFF84FB8695D2FAE750C5" box="[1060,1314,1937,1963]" italics="true" pageId="115" pageNumber="248">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
appears relatively squared as its dorsoventral height and anteroposterior thickness reach about the same length.
|
||
</paragraph>
|
||
<caption id="DF5CB7E81D48FF83FF2695E8FB025087" ID-DOI="http://doi.org/10.5281/zenodo.11106728" ID-Zenodo-Dep="11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="116" pageNumber="249" startId="116.[132,143,1963,1980]" targetBox="[138,1445,217,1863]" targetPageId="116" targetType="figure">
|
||
<paragraph id="8B9CE7601D48FF83FF2695E8FB025087" blockId="116.[132,1455,1963,2025]" pageId="116" pageNumber="249">
|
||
<smallCapsWord id="8D7A71BC1D48FF83FF2695E8FF5850D5" baselines="1976,1976" box="[132,157,1963,1980]" lowerCaseFontSize="5" mainFontSize="7" normCase="title" normString="Fig" pageId="116" pageNumber="249">FIG</smallCapsWord>
|
||
. 59. — Pelvic girdle elements of
|
||
<taxonomicName id="4C239CE31D48FF83FE1295E8FCDD50D2" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[432,792,1963,1980]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="116" pageNumber="249" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D48FF83FE1295E8FD4C50D2" box="[432,649,1963,1980]" italics="true" pageId="116" pageNumber="249">Lemmysuchus obtusidens</emphasis>
|
||
(
|
||
<bibRefCitation id="EFB29A911D48FF83FD3195E8FCD150D2" author="ANDREWS C. W." box="[659,788,1963,1980]" pageId="116" pageNumber="249" pagination="299 - 308" refId="ref108338" refString="ANDREWS C. W. 1909. - XXXVIII - On some new Steneosaurs from the Oxford Clay of Peterborough. Annals and Magazine of Natural History 3: 299 - 308. https: // doi. org / 10.1080 / 00222930908692579" type="journal article" year="1909">Andrews, 1909</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, NHMUK PV R 3168 (holotype):
|
||
<emphasis id="B9573B721D48FF83FB8695E8FBF450D2" bold="true" box="[1060,1073,1963,1980]" pageId="116" pageNumber="249">A</emphasis>
|
||
, left ilium in lateral view;
|
||
<emphasis id="B9573B721D48FF83FAA095E8FACA50D2" bold="true" box="[1282,1295,1963,1980]" pageId="116" pageNumber="249">B</emphasis>
|
||
, left ilium in medial view;
|
||
<emphasis id="B9573B721D48FF83FF169581FF0750BD" bold="true" box="[180,194,1986,2003]" pageId="116" pageNumber="249">C</emphasis>
|
||
, left pubis in lateral view;
|
||
<emphasis id="B9573B721D48FF83FE399581FE6C50BD" bold="true" box="[411,425,1986,2003]" pageId="116" pageNumber="249">D</emphasis>
|
||
, left ischium in lateral view;
|
||
<emphasis id="B9573B721D48FF83FD319581FD5A50BD" bold="true" box="[659,671,1986,2003]" pageId="116" pageNumber="249">E</emphasis>
|
||
, left pubis in anterodorsal view;
|
||
<emphasis id="B9573B721D48FF83FC0C9581FC7C50BD" bold="true" box="[942,953,1986,2003]" pageId="116" pageNumber="249">F</emphasis>
|
||
, right ischium in lateral view;
|
||
<emphasis id="B9573B721D48FF83FB129581FB7B50BD" bold="true" box="[1200,1214,1986,2003]" pageId="116" pageNumber="249">G</emphasis>
|
||
, surimposition of both ischia (right and left) of
|
||
<taxonomicName id="4C239CE31D48FF83FEB3959BFDAC5087" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[273,617,2008,2025]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="116" pageNumber="249" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D48FF83FEB3959BFE355087" box="[273,496,2008,2025]" italics="true" pageId="116" pageNumber="249">Lemmysuchus obtusidens,</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8B9CE7601D49FF82FF399294FE9956BF" blockId="117.[130,775,215,465]" pageId="117" pageNumber="250">
|
||
When superimposed, the outline of the right and left ischia of
|
||
<taxonomicName id="4C239CE31D49FF82FF3C92B4FE51567F" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[158,404,247,273]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FF3C92B4FE51567F" box="[158,404,247,273]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
do not coincide (
|
||
<figureCitation id="1318FBE51D49FF82FDE592B4FD63567F" box="[583,678,247,274]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="117" pageNumber="250">Fig. 59G</figureCitation>
|
||
). Indeed, there are dissimilarities in the size of the posterior peduncle, thickness of the shaft, extension of the posterior process, and inclination between the ventral margin of the distal blade and the dorsal surface of the posterior peduncle. These differences reveal an important level of intraspecific variation for
|
||
<taxonomicName id="4C239CE31D49FF82FD7093D4FE9056BE" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FD7093D4FE9056BE" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D49FF82FF2693B5FF78557E" blockId="117.[132,189,502,528]" box="[132,189,502,528]" pageId="117" pageNumber="250">
|
||
<heading id="D0D4500C1D49FF82FF2693B5FF78557E" box="[132,189,502,528]" fontSize="11" level="2" pageId="117" pageNumber="250" reason="8">
|
||
<emphasis id="B9573B721D49FF82FF2693B5FF78557E" box="[132,189,502,528]" italics="true" pageId="117" pageNumber="250">Pubis</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D49FF82FF269055FE1254A1" blockId="117.[130,777,534,2027]" pageId="117" pageNumber="250">
|
||
The pubis of
|
||
<taxonomicName id="4C239CE31D49FF82FEA59055FE39555E" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[263,508,534,560]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FEA59055FE39555E" box="[263,508,534,560]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D49FF82FDA99055FD96555F" box="[523,595,534,561]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="117" pageNumber="250">Fig. 59</figureCitation>
|
||
) shows an overall triangular outline, with a truncated distal extremity. In this way, the pubis of
|
||
<taxonomicName id="4C239CE31D49FF82FEEA9015FD8D551E" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[328,584,598,624]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FEEA9015FD8D551E" box="[328,584,598,624]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
resembles that of other thalattosuchians (e.g. ‘
|
||
<taxonomicName id="4C239CE31D49FF82FE1B9035FEFF55DE" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D49FF82FE1B9035FD9F55FE" box="[441,602,630,656]" italics="true" pageId="117" pageNumber="250">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D49FF82FDCB9035FCC255FE" box="[617,775,630,656]" italics="true" pageId="117" pageNumber="250">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804,
|
||
<taxonomicName id="4C239CE31D49FF82FE2990D5FDBB55DE" authorityName="Lydekker" authorityYear="1890" box="[395,638,662,688]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D49FF82FE2990D5FDBB55DE" box="[395,638,662,688]" italics="true" pageId="117" pageNumber="250">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FD2F90D5FF3B55A1" baseAuthorityName="Gasparini & Dellape" baseAuthorityYear="1976" class="Reptilia" family="Metriorhynchidae" genus="Cricosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="araucanensis">
|
||
<emphasis id="B9573B721D49FF82FD2F90D5FF3B55A1" italics="true" pageId="117" pageNumber="250">Cricosaurus araucanensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FEAB90F6FE3A55A1" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[265,511,693,719]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D49FF82FEAB90F6FE3A55A1" box="[265,511,693,719]" italics="true" pageId="117" pageNumber="250">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FDA890F5FCC555A1" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[522,768,693,719]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D49FF82FDA890F5FCC555A1" box="[522,768,693,719]" italics="true" pageId="117" pageNumber="250">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
, etc.) and dyrosaurids (e.g.
|
||
<taxonomicName id="4C239CE31D49FF82FE359095FD9B5581" box="[407,606,726,751]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="natator">
|
||
<emphasis id="B9573B721D49FF82FE359095FD9B5581" box="[407,606,726,751]" italics="true" pageId="117" pageNumber="250">Hyposaurus natator</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FDC89096FD9F5461" authority="Hastings, Bloch & Jaramillo, 2014" authorityName="Hastings, Bloch & Jaramillo" authorityYear="2014" family="Dyrosauridae" genus="Anthracosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="balrogus">
|
||
<emphasis id="B9573B721D49FF82FDC89096FF1C5461" italics="true" pageId="117" pageNumber="250">Anthracosuchus balrogus</emphasis>
|
||
<bibRefCitation id="EFB29A911D49FF82FF4290B6FD9F5461" author="HASTINGS A. K. & BLOCH J. I. & JARAMILLO C." box="[224,602,757,783]" pageId="117" pageNumber="250" pagination="998 - 1020" refId="ref111644" refString="HASTINGS A. K., BLOCH J. I. & JARAMILLO C. 2014. - A new blunt-snouted dyrosaurid, Anthracosuchus balrogus gen. et sp. nov. (Crocodylomorpha, Mesoeucrocodylia), from the Palaeocene of Colombia. Historical Biology 27 (8): 998 - 1020. https: // doi. org / 10.1080 / 08912963.2014.918968" type="journal article" year="2014">Hastings, Bloch & Jaramillo, 2014</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FDC790B6FF345441" family="Dyrosauridae" genus="Cerrejonisuchus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="improcerus">
|
||
<emphasis id="B9573B721D49FF82FDC790B6FF345441" italics="true" pageId="117" pageNumber="250">Cerrejonisuchus improcerus</emphasis>
|
||
</taxonomicName>
|
||
, etc.), but strongly differs from that of extant crocodylians (e.g.
|
||
<taxonomicName id="4C239CE31D49FF82FEAE9175FE305421" box="[268,501,821,847]" class="Crocodylia" family="Crocodylidae" genus="Mecistops" kingdom="Animalia" order="Eusuchia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="cataphractus">
|
||
<emphasis id="B9573B721D49FF82FEAE9175FE305421" box="[268,501,821,847]" italics="true" pageId="117" pageNumber="250">Mecistops cataphractus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FDA19175FD065421" box="[515,707,821,848]" class="Crocodylia" family="Alligatoridae" genus="Caiman" kingdom="Animalia" order="Eusuchia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="crocodilus">
|
||
<emphasis id="B9573B721D49FF82FDA19175FD065421" box="[515,707,821,848]" italics="true" pageId="117" pageNumber="250">Caiman crocodilus</emphasis>
|
||
</taxonomicName>
|
||
, etc.). Indeed, this difference is due to the existence of a long pubic symphysis for
|
||
<taxonomicName id="4C239CE31D49FF82FE819136FDE654E1" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[291,547,885,911]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FE819136FDE654E1" box="[291,547,885,911]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(and other members of Thalattosuchia and
|
||
<taxonomicName id="4C239CE31D49FF82FE2391D6FDDC54C1" authorityName="de Stefano" authorityYear="1903" box="[385,537,917,943]" class="Reptilia" family="Dyrosauridae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="family">Dyrosauridae</taxonomicName>
|
||
), whereas it is greatly reduced in extant crocodylians.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D49FF82FF399196FE565143" blockId="117.[130,777,534,2027]" pageId="117" pageNumber="250">
|
||
In
|
||
<taxonomicName id="4C239CE31D49FF82FF159197FE6A5480" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[183,431,980,1006]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FF159197FE6A5480" box="[183,431,980,1006]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
, the pubic symphysis is a straight margin which forms an angle of approximately 27° with the axis of the shaft, similar to
|
||
<taxonomicName id="4C239CE31D49FF82FECA9657FDA35340" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[360,614,1044,1070]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D49FF82FECA9657FDA35340" box="[360,614,1044,1070]" italics="true" pageId="117" pageNumber="250">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D49FF82FD3B9656FF385320" authority="(Andrews, 1909)" authorityName="(Andrews)" authorityYear="1909" baseAuthorityName="Andrews" baseAuthorityYear="1909" family="Teleosauridae" genus="Mycterosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="nasutus">
|
||
<emphasis id="B9573B721D49FF82FD3B9656FF385320" italics="true" pageId="117" pageNumber="250">Mycterosuchus nasutus</emphasis>
|
||
</taxonomicName>
|
||
. The angular relation in
|
||
<taxonomicName id="4C239CE31D49FF82FE569676FD355320" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[500,752,1076,1102]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D49FF82FE569676FD355320" box="[500,752,1076,1102]" italics="true" pageId="117" pageNumber="250">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
is slightly greater but overall falls within the same range.
|
||
<taxonomicName id="4C239CE31D49FF82FD1A9616FD3B5300" baseAuthorityName="Tsai & Holliday" baseAuthorityYear="2015" box="[696,766,1109,1134]" family="Teleosauridae" genus="Indosinosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="vivo">
|
||
<emphasis id="B9573B721D49FF82FD1A9616FD3B5300" box="[696,766,1109,1134]" italics="true" pageId="117" pageNumber="250">In vivo</emphasis>
|
||
</taxonomicName>
|
||
, the pubic symphysis of both pubes were medially connected presumably using soft tissues (
|
||
<figureCitation id="1318FBE51D49FF82FE6596D7FDD753C0" box="[455,530,1172,1198]" captionStart="FIG" captionStartId="118.[132,143,1986,2003]" captionTargetBox="[138,1456,210,1913]" captionTargetId="figure-17@118.[138,1449,244,1855]" captionTargetPageId="118" captionText="FIG. 60. — Pelvic reconstruction of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, lateral view; B, anterior view; C, ventral view; D, dorsal view. Arrow points anteriorly. Target indicates anterior. The left ischium and right ilium and pubis are mirrored. Scale bar: 5 cm." figureDoi="http://doi.org/10.5281/zenodo.11106732" httpUri="https://zenodo.org/record/11106732/files/figure.png" pageId="117" pageNumber="250">Fig. 60</figureCitation>
|
||
). The pubic symphysis is proximally connected with the medial margin of the pubis, and distally with the pubic blade. The junction between the concave medial margin of the pubis and the pubic symphysis forms a right angle as in other thalattosuchians displaying a long pubic symphysis (e.g. ‘
|
||
<taxonomicName id="4C239CE31D49FF82FE159770FEEB5200" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D49FF82FE159770FD9C5223" box="[439,601,1331,1357]" italics="true" pageId="117" pageNumber="250">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D49FF82FDCA9770FCC25223" box="[616,775,1331,1357]" italics="true" pageId="117" pageNumber="250">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804,
|
||
<taxonomicName id="4C239CE31D49FF82FED19710FD935203" authorityName="Lydekker" authorityYear="1890" box="[371,598,1363,1389]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D49FF82FED19710FD935203" box="[371,598,1363,1389]" italics="true" pageId="117" pageNumber="250">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FDC09710FCC55203" authorityName="SPP. VON MEYER" authorityYear="1837" box="[610,768,1363,1389]" class="Reptilia" family="Teleosauridae" genus="Machimosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9573B721D49FF82FDC09710FCC55203" box="[610,768,1363,1389]" italics="true" pageId="117" pageNumber="250">Machimosaurus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FF269730FE4E52E3" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[132,395,1395,1421]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D49FF82FF269730FE4E52E3" box="[132,395,1395,1421]" italics="true" pageId="117" pageNumber="250">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FE3A9737FD5A52E3" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[408,671,1395,1421]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D49FF82FE3A9737FD5A52E3" box="[408,671,1395,1421]" italics="true" pageId="117" pageNumber="250">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FD0E9737FEDC52C3" authority="(Andrews, 1909)" authorityName="(Andrews)" authorityYear="1909" baseAuthorityName="Andrews" baseAuthorityYear="1909" family="Teleosauridae" genus="Mycterosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="nasutus">
|
||
<emphasis id="B9573B721D49FF82FD0E9737FEDC52C3" italics="true" pageId="117" pageNumber="250">Mycterosuchus nasutus</emphasis>
|
||
</taxonomicName>
|
||
). In comparison, the intersection between the pubic symphysis and the pubic blade is achieved through an obtuse angle of approximately 140-150°, which is closer to
|
||
<taxonomicName id="4C239CE31D49FF82FF0197B0FE695163" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[163,428,1523,1549]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D49FF82FF0197B0FE695163" box="[163,428,1523,1549]" italics="true" pageId="117" pageNumber="250">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D49FF82FE4797B0FD085162" authority="(Andrews, 1909)" authorityName="(Andrews)" authorityYear="1909" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[485,717,1523,1549]" family="Teleosauridae" genus="Mycterosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="nasutus">
|
||
<emphasis id="B9573B721D49FF82FE4797B0FD085162" box="[485,717,1523,1549]" italics="true" pageId="117" pageNumber="250">Mycterosuchus nasutus</emphasis>
|
||
</taxonomicName>
|
||
than
|
||
<taxonomicName id="4C239CE31D49FF82FF269450FE495142" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[132,396,1554,1580]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D49FF82FF269450FE495142" box="[132,396,1554,1580]" italics="true" pageId="117" pageNumber="250">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D49FF82FF399471FACA56BF" blockId="117.[130,777,534,2027]" lastBlockId="117.[811,1457,215,880]" pageId="117" pageNumber="250">
|
||
The pubic blade, which corresponds to the distal margin of the pubis, is relatively convex with its turning point slightly offset to the lateral side. The transition to the lateral margin of the pubis is smooth and rounded, but the angle between the distal and lateral margin approximates 90°. Like several other thalattosuchians (e.g. ‘
|
||
<taxonomicName id="4C239CE31D49FF82FE1B9491FEFB5062" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D49FF82FE1B9491FD9F5182" box="[441,602,1746,1772]" italics="true" pageId="117" pageNumber="250">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D49FF82FDCB9491FCC25182" box="[617,775,1746,1772]" italics="true" pageId="117" pageNumber="250">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804,
|
||
<taxonomicName id="4C239CE31D49FF82FE3094B1FDBF5062" authorityName="Von Quenstedt" authorityYear="1856" baseAuthorityName="Plieninger" baseAuthorityYear="1846" box="[402,634,1778,1804]" class="Reptilia" family="Metriorhynchidae" genus="Dakosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="maximus">
|
||
<emphasis id="B9573B721D49FF82FE3094B1FDBF5062" box="[402,634,1778,1804]" italics="true" pageId="117" pageNumber="250">Dakosaurus maximus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FD2E94B1FE865042" baseAuthorityName="Berckhemer" baseAuthorityYear="1929" class="Reptilia" family="Teleosauridae" genus="Platysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="multiscrobiculatus">
|
||
<emphasis id="B9573B721D49FF82FD2E94B1FE865042" italics="true" pageId="117" pageNumber="250">Platysuchus multiscrobiculatus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FEF19551FDA45042" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[339,609,1810,1836]" genus="Charitomenosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="leedsi">
|
||
<emphasis id="B9573B721D49FF82FEF19551FDA45042" box="[339,609,1810,1836]" italics="true" pageId="117" pageNumber="250">Charitomenosuchus leedsi</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C239CE31D49FF82FDD39551FF145025" authority="(Andrews, 1909)" authorityName="(Andrews)" authorityYear="1909" baseAuthorityName="Andrews" baseAuthorityYear="1909" family="Teleosauridae" genus="Mycterosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="nasutus">
|
||
<emphasis id="B9573B721D49FF82FDD39551FF145025" italics="true" pageId="117" pageNumber="250">Mycterosuchus nasutus</emphasis>
|
||
</taxonomicName>
|
||
, etc.), the pubic plate of
|
||
<taxonomicName id="4C239CE31D49FF82FE4D9572FD2A5025" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[495,751,1841,1867]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FE4D9572FD2A5025" box="[495,751,1841,1867]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
is large, especially compared to the relatively short shaft. The extend of the pubic symphysis and distal blade contribute for the most part to the breadth of the pubis. The lateral margin of the pubis, which connects the pubic peduncle and the ventral margin of the distal blade, is lightly undulating: even though the whole lateral margin appears concave, it is actually subtly convex, with the inflexion point observable at about the mid-length of the lateral margin of the pubic plate, similar to
|
||
<taxonomicName id="4C239CE31D49FF82FC439374FB46563F" authorityName="SPP. VON MEYER" authorityYear="1837" box="[993,1155,311,337]" class="Reptilia" family="Teleosauridae" genus="Machimosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9573B721D49FF82FC439374FB46563F" box="[993,1155,311,337]" italics="true" pageId="117" pageNumber="250">Machimosaurus</emphasis>
|
||
</taxonomicName>
|
||
. The truly concave portion remains the lateral margin of the shaft. Proximally, the shaft flares out to form the peduncle of the pubis, whose articular surface presumably takes the shape of an ellipse in section (but is unfortunately not preserved;
|
||
<figureCitation id="1318FBE51D49FF82FB1193F5FB3A56BF" box="[1203,1279,438,465]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="117" pageNumber="250">Fig. 59</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D49FF82FCE19394FB6B55DE" blockId="117.[811,1457,215,880]" pageId="117" pageNumber="250">
|
||
In
|
||
<taxonomicName id="4C239CE31D49FF82FCC49395FBB1569E" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[870,1140,470,496]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FCC49395FBB1569E" box="[870,1140,470,496]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D49FF82FB259395FB1C569F" box="[1159,1241,470,497]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="117" pageNumber="250">Fig. 59</figureCitation>
|
||
), the anteroposterior thickness of the pubic apron increases laterally so that the distal blade is thicker than the pubic symphysis similar to ‘
|
||
<taxonomicName id="4C239CE31D49FF82FCF19075FAAD553F" authority="NHMUK PV R" authorityName=", NHMUK PV R" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1867" box="[851,1384,566,593]" class="Reptilia" family="Metriorhynchidae" genus="Metriorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="brachyrhynchus">
|
||
<emphasis id="B9573B721D49FF82FCF19075FC32553E" box="[851,1015,566,592]" italics="true" pageId="117" pageNumber="250">Metriorhynchus</emphasis>
|
||
’
|
||
<emphasis id="B9573B721D49FF82FBA59075FB6D553E" box="[1031,1192,566,592]" italics="true" pageId="117" pageNumber="250">brachyrhynchus</emphasis>
|
||
NHMUK PV R
|
||
</taxonomicName>
|
||
3804,
|
||
<taxonomicName id="4C239CE31D49FF82FC8F9014FBF6551E" authority="(Eudes-Deslongchamps, 1868)" authorityName="(Eudes-Deslongchamps)" authorityYear="1868" baseAuthorityName="Eudes-Deslongchamps" baseAuthorityYear="1868" box="[813,1075,598,624]" genus="Neosteneosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="edwardsi">
|
||
<emphasis id="B9573B721D49FF82FC8F9014FBF6551E" box="[813,1075,598,624]" italics="true" pageId="117" pageNumber="250">Neosteneosaurus edwardsi</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D49FF82FBC59015FA88551E" authority="(Andrews, 1909)" authorityName="(Andrews)" authorityYear="1909" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[1127,1357,598,624]" family="Teleosauridae" genus="Mycterosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="nasutus">
|
||
<emphasis id="B9573B721D49FF82FBC59015FA88551E" box="[1127,1357,598,624]" italics="true" pageId="117" pageNumber="250">Mycterosuchus nasutus</emphasis>
|
||
</taxonomicName>
|
||
. In comparison, the taxa
|
||
<taxonomicName id="4C239CE31D49FF82FC4F9035FB1B55FE" authorityName="Lydekker" authorityYear="1890" box="[1005,1246,630,656]" class="Reptilia" family="Metriorhynchidae" genus="Suchodus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="durobrivensis">
|
||
<emphasis id="B9573B721D49FF82FC4F9035FB1B55FE" box="[1005,1246,630,656]" italics="true" pageId="117" pageNumber="250">Suchodus durobrivensis</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C239CE31D49FF82FAB49035FC6F55DE" authority="(Blainville, 1853)" authorityName="(Blainville)" authorityYear="1852" baseAuthorityName="Blainville" baseAuthorityYear="1853" class="Reptilia" family="Metriorhynchidae" genus="Thalattosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="superciliosus">
|
||
<emphasis id="B9573B721D49FF82FAB49035FC6F55DE" italics="true" pageId="117" pageNumber="250">Thalattosuchus superciliosus</emphasis>
|
||
</taxonomicName>
|
||
display a thinner pubis.
|
||
</paragraph>
|
||
<paragraph id="8B9CE7601D49FF82FCE190F6FAD35401" blockId="117.[811,1457,215,880]" pageId="117" pageNumber="250">
|
||
The pubis of
|
||
<taxonomicName id="4C239CE31D49FF82FC7990F6FB1B55A1" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[987,1246,693,719]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FC7990F6FB1B55A1" box="[987,1246,693,719]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="1318FBE51D49FF82FB4C90F6FAF855BE" box="[1262,1341,693,720]" captionStart="FIG" captionStartId="116.[132,143,1963,1980]" captionTargetBox="[138,1445,217,1863]" captionTargetId="figure-17@116.[51,1470,169,1971]" captionTargetPageId="116" captionText="FIG. 59. — Pelvic girdle elements of Lemmysuchus obtusidens (Andrews, 1909), NHMUK PV R 3168 (holotype): A, left ilium in lateral view; B, left ilium in medial view; C, left pubis in lateral view; D, left ischium in lateral view; E, left pubis in anterodorsal view; F, right ischium in lateral view; G, surimposition of both ischia (right and left) of Lemmysuchus obtusidens, NHMUK PV R 3168. Target indicates anterior. Arrow points anteriorly. Scale bar: 1 cm." figureDoi="http://doi.org/10.5281/zenodo.11106728" httpUri="https://zenodo.org/record/11106728/files/figure.png" pageId="117" pageNumber="250">Fig. 59</figureCitation>
|
||
) is deeply arched anteroposteriorly possibly as a consequence of diagenetic deformation (whereas its ilium is acutely flattened lateromedially).
|
||
<taxonomicName id="4C239CE31D49FF82FC799155FBE75441" baseAuthorityName="Tsai & Holliday" baseAuthorityYear="2015" box="[987,1058,790,815]" family="Teleosauridae" genus="Indosinosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="vivo">
|
||
<emphasis id="B9573B721D49FF82FC799155FBE75441" box="[987,1058,790,815]" italics="true" pageId="117" pageNumber="250">In vivo</emphasis>
|
||
</taxonomicName>
|
||
, the pubis of
|
||
<taxonomicName id="4C239CE31D49FF82FB139156FA6B5441" authority="(Andrews, 1909)" authorityName="(Andrews)" baseAuthorityName="Andrews" baseAuthorityYear="1909" box="[1201,1454,789,815]" class="Reptilia" family="Teleosauridae" genus="Lemmysuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="117" pageNumber="250" phylum="Chordata" rank="species" species="obtusidens">
|
||
<emphasis id="B9573B721D49FF82FB139156FA6B5441" box="[1201,1454,789,815]" italics="true" pageId="117" pageNumber="250">Lemmysuchus obtusidens</emphasis>
|
||
</taxonomicName>
|
||
was presumably more gently arched, in a fashion similar to
|
||
<taxonomicName id="4C239CE31D49FF82FC8C9116FC605401" box="[814,933,853,879]" class="Crocodylia" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="117" pageNumber="250" phylum="Chordata" rank="class">Crocodylia</taxonomicName>
|
||
(e.g. see
|
||
<emphasis id="B9573B721D49FF82FBA49116FAC05401" box="[1030,1285,853,879]" italics="true" pageId="117" pageNumber="250">Palaeosuchus palpebrosus</emphasis>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |