212 lines
31 KiB
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212 lines
31 KiB
XML
<document id="82E4BF8DDAF4310B5389F366CD43287C" ID-CLB-Dataset="8540" ID-DOI="10.5252/geodiversitas2020v42a25" ID-GBIF-Dataset="06bad515-ea43-452d-befa-d053712dd162" ID-ISSN="1638-9395" ID-Zenodo-Dep="4447700" ID-ZooBank="urn:lsid:zoobank.org:pub:640E41DD-5761-4A5D-973C-9673DA38E2AD" IM.bibliography_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1610990690112" checkinUser="felipe" docAuthor="Lapparent, France de, Chirio, Laurent & Bour, Roger" docDate="2020" docId="232287F4FE3AFFA2FC40FCC6FD09FB9A" docLanguage="en" docName="Geodiversitas.42.25.455-484.pdf" docOrigin="Geodiversitas 42 (25)" docStyle="DocumentStyle:F830B10FF475E64C1F1601E3B32DDC00.4:Geodiversitas.2018-.journal_article" docStyleId="F830B10FF475E64C1F1601E3B32DDC00" docStyleName="Geodiversitas.2018-.journal_article" docStyleVersion="4" docTitle="Ragechelus SAHELICA N., n." docType="treatment" docUuid="A7E9333B-FD76-4C4B-AE63-1A68CED1407E" docUuidSource="ZooBank" docVersion="9" lastPageNumber="467" masterDocId="DF1BFF8CFE37FFADFFA6FFB2FFEEFFB5" masterDocTitle="The oldest erymnochelyine turtle skull, Ragechelus sahelica n. gen., n. sp., from the Iullemmeden basin, Upper Cretaceous of Africa, and the associated fauna in its geographical and geological context" masterLastPageNumber="484" masterPageNumber="455" pageNumber="466" updateTime="1698924652639" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:title id="B067709D15F7C6582EE112FA3905973C">The oldest erymnochelyine turtle skull, Ragechelus sahelica n. gen., n. sp., from the Iullemmeden basin, Upper Cretaceous of Africa, and the associated fauna in its geographical and geological context</mods:title>
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<mods:roleTerm id="E54AC958D8D429B846BB57408B243F45">Author</mods:roleTerm>
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<mods:namePart id="9364AEB2A56C311E6F88588FD5861032">Lapparent, France de</mods:namePart>
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<mods:roleTerm id="8E099479A76934D8DA69F5A572C351EC">Author</mods:roleTerm>
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<mods:namePart id="7D5155038C83897D42CA8F4EBB89492C">Chirio, Laurent</mods:namePart>
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<mods:name id="DCC1D72928DB7FA951186247A78ADBC1" type="personal">
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<mods:roleTerm id="BE6F82065281024A802ECC18DCDB1E2C">Author</mods:roleTerm>
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<mods:namePart id="AD127B65B8C6B936553DB814B771403B">Bour, Roger</mods:namePart>
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<mods:title id="E6458AEB605FF1BED37DBF87E0A20456">Geodiversitas</mods:title>
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<mods:part id="08B617343F7CCD3986D75FC4D7E02F42">
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<mods:date id="7925E98D69FB1F4F2927B7134258EA88">2020</mods:date>
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<mods:number id="6251DB2B4331C05121D76D779233B88D">2020-10-22</mods:number>
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<mods:number id="35AC446013C0973721CFD16B8DAA6E3A">42</mods:number>
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<mods:identifier id="13827E3FE0B81669AA56603136094F87" type="DOI">10.5252/geodiversitas2020v42a25</mods:identifier>
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<treatment id="232287F4FE3AFFA2FC40FCC6FD09FB9A" ID-DOI="http://doi.org/10.5281/zenodo.4494288" ID-GBIF-Taxon="177203286" ID-Zenodo-Dep="4494288" LSID="urn:lsid:zoobank.org:act:A7E9333B-FD76-4C4B-AE63-1A68CED1407E" httpUri="http://treatment.plazi.org/id/232287F4FE3AFFA2FC40FCC6FD09FB9A" lastPageId="15" lastPageNumber="467" pageId="13" pageNumber="466">
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<subSubSection id="E3916569FE3AFFA0FC40FCC6FB18FC3A" box="[998,1270,884,911]" pageId="13" pageNumber="466" type="nomenclature">
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<paragraph id="AB3436E2FE3AFFA0FC40FCC6FB18FC3A" blockId="13.[998,1270,884,911]" box="[998,1270,884,911]" pageId="13" pageNumber="466">
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<heading id="F07C818EFE3AFFA0FC40FCC6FB18FC3A" box="[998,1270,884,911]" centered="true" fontSize="11" level="2" pageId="13" pageNumber="466" reason="2">
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<taxonomicName id="6C8B4D61FE3AFFA0FC40FCC6FB3FFC3A" authority="sahelica n." authorityName="SAHELICA N." box="[998,1233,884,911]" class="Reptilia" family="Bothremydidae" genus="Ragechelus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="478" phylum="Chordata" rank="genus">
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<emphasis id="99FFEAF0FE3AFFA0FC40FCC6FB5AFC3A" bold="true" box="[998,1204,884,911]" italics="true" pageId="13" pageNumber="466">Ragechelus sahelica</emphasis>
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<taxonomicNameLabel id="82CC578BFE3AFFA0FB1AFCC7FB3FFC3A" box="[1212,1233,885,911]" pageId="13" pageNumber="466" rank="species">n.</taxonomicNameLabel>
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</taxonomicName>
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sp.
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="E3916569FE3AFFA0FB9FFC27FA5EFC5D" pageId="13" pageNumber="466" type="description">
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<paragraph id="AB3436E2FE3AFFA0FB9FFC27FB4CFC1A" blockId="13.[1081,1186,917,944]" box="[1081,1186,917,944]" pageId="13" pageNumber="466">
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(
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<figureCitation id="33B02A67FE3AFFA0FBE7FC27FB77FC1A" box="[1089,1177,917,944]" captionStart-0="FIG" captionStart-1="FIG" captionStart-2="FIG" captionStart-3="FIG" captionStart-4="FIG" captionStartId-0="14.[132,143,1502,1519]" captionStartId-1="15.[132,143,604,621]" captionStartId-2="16.[132,143,969,986]" captionStartId-3="17.[132,143,909,926]" captionStartId-4="18.[813,824,1144,1161]" captionTargetBox-0="[192,1392,214,1461]" captionTargetBox-1="[436,1137,232,562]" captionTargetBox-2="[456,1095,216,927]" captionTargetBox-3="[156,752,215,868]" captionTargetBox-4="[813,1456,215,1102]" captionTargetId-0="figure-309@14.[189,1399,209,1471]" captionTargetId-1="figure-756@15.[423,1165,214,572]" captionTargetId-2="figure-571@16.[454,1134,215,927]" captionTargetId-3="figure-894@17.[156,752,215,868]" captionTargetId-4="figure-833@18.[813,1456,215,1102]" captionTargetPageId-0="14" captionTargetPageId-1="15" captionTargetPageId-2="16" captionTargetPageId-3="17" captionTargetPageId-4="18" captionText-0="FIG. 5. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian; photographs of the skull, holotype MNHN-RA-2018.0031: A-F, dorsal, ventral, left lateral, anterior, right lateral and posterior views. Scale bar: 4 cm." captionText-1="FIG. 6. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian. Lateral view of the skull, holotype MNHN-RA-2018.0031. Abbreviations: an sq, antrum squamosum; co, condylus occipitalis; com q, commissura quadrati; fpp; foramen palatinum posterius; fr, frontal; ica+Et, incisura columellae auris with the Eustachian tube; ju, jugal; l pfr, left prefrontal; mq, meatus quadrati; mx, maxilla; na, external nare; pal, palatine; pfr, prefrontal; pmx, premaxilla; paq, processus articularis quadrati; pmx, premaxilla; po, postorbital; ppo, processus paroccipitalis opisthotici; pro, prootic; pter, pterygoid; ptp, processus trochlearis pterygoideus; q, quadrate; r paq, right processus articularis quadrati; r pter, right pterygoid; soc, supraoccipital; sq, squamosal; V, foramen trigemini; black arrow, position of the foramen stapediotemporale; blue and green dotted lines, hypothetic positions for the skull lateral notch border; red line, border of the palatal medial crest. Scale bar: 4 cm." captionText-2="FIG. 7. — Ragechelus sahelica n.gen.,n. sp.,Indamane,southwestern Niger,late Maastrichtian;interpretative drawing of the skull,holotype MNHN-RA-2018.0031. Abbreviations:aaq, area articularis quadrati;boc, basioccipital; bsph, basiphenoid;car c, carotid canal; cav pter, cavum pterygoideum; co, condylus occipitalis; col-Et, columella auris with the Eustachian tube passage; cq, commissura quadrati; fpp, foramen palatinum posterius; fp, fenestra postotica; imc, intermediate maxillo-palatine crest; ju, jugal; mc, medial maxillo-palatine crest; ms, muscle insertion zone; mx, maxilla; pal, palatine; pmx, premaxilla; po, postorbital; ppo, processus paroccipitalis opisthotici; pter w, pterygoid wing; ptp, processus trochlearis pterygoideus; q, quadrate. Ventral view. Scale bar: 4 cm." captionText-3="FIG. 8. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian;detail of the skull,holotype MNHN-RA-2018.0031,showing the rounded carotid foramen for entrance in te besicranium,at the back of the deep cavum pterygoideum, below the (broken here) podocnemidid pterygoid wing;Abbreviations:boc, basioccipital;bsph, basisphenoid;car can, enlarged carotid foramen; cav pter, cavum pterygoideum; pw, break of the pterygoid wing at its posterior base; q, quadrate; q art, area articularis quadrati. Ventral view. Scale bar: 2 cm." captionText-4="FIG. 9. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian; detail of the skull, cavum tympani area, holotype MNHN- RA-2018.0031. Abbreviations: ant, antrum squamosum; cq, commissura quadrati; ica+Et, incisura columellae auris with Eustachian tube. Left lateral view. Scale bar: 2 cm." figureDoi-0="http://doi.org/10.5281/zenodo.4447710" figureDoi-1="http://doi.org/10.5281/zenodo.4447712" figureDoi-2="http://doi.org/10.5281/zenodo.4447714" figureDoi-3="http://doi.org/10.5281/zenodo.4447718" figureDoi-4="http://doi.org/10.5281/zenodo.4447720" httpUri-0="https://zenodo.org/record/4447710/files/figure.png" httpUri-1="https://zenodo.org/record/4447712/files/figure.png" httpUri-2="https://zenodo.org/record/4447714/files/figure.png" httpUri-3="https://zenodo.org/record/4447718/files/figure.png" httpUri-4="https://zenodo.org/record/4447720/files/figure.png" pageId="13" pageNumber="466">Figs 5-9</figureCitation>
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)
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</paragraph>
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<paragraph id="AB3436E2FE3AFFA0FC8BFC65FA5EFC5D" blockId="13.[813,1456,983,1000]" box="[813,1456,983,1000]" pageId="13" pageNumber="466">
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<uri id="DF1A3AE0FE3AFFA0FC8BFC65FA5EFC5D" box="[813,1456,983,1000]" pageId="13" pageNumber="466">
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urn:lsid:zoobank.org:act:
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<uuid id="DF2D0C37FE3AFFA0FBADFC65FA5EFC5D" box="[1035,1456,983,1000]" pageId="13" pageNumber="466">B201BDDE-1F71-49D9-8904-0D68D9595834</uuid>
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</uri>
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="E3916569FE3AFFA0FC8BFBAFFACCFB80" box="[813,1314,1053,1077]" pageId="13" pageNumber="466" type="materials_examined">
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<paragraph id="AB3436E2FE3AFFA0FC8BFBAFFACCFB80" blockId="13.[813,1314,1053,1077]" box="[813,1314,1053,1077]" pageId="13" pageNumber="466">
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<typeStatus id="74308840FE3AFFA0FC8BFBAFFC79FB86" box="[813,919,1053,1076]" pageId="13" pageNumber="466" type="holotype">HOLOTYPE</typeStatus>
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. — One skull, MNHN.RA.2018.0078.
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</paragraph>
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</subSubSection>
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<subSubSection id="E3916569FE3AFFA0FC8BFBE3FA92FBDC" box="[813,1404,1105,1129]" pageId="13" pageNumber="466" type="etymology">
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<paragraph id="AB3436E2FE3AFFA0FC8BFBE3FA92FBDC" blockId="13.[813,1404,1105,1129]" box="[813,1404,1105,1129]" pageId="13" pageNumber="466">ETYMOLOGY. — From Sahel, geographical area of discovery.</paragraph>
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</subSubSection>
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<subSubSection id="E3916569FE3AFFA0FC8BFB37FB64FAE3" pageId="13" pageNumber="466" type="materials_examined">
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<paragraph id="AB3436E2FE3AFFA0FC8BFB37FB64FAE3" blockId="13.[811,1457,1157,1366]" pageId="13" pageNumber="466">
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TYPE LOCALITY AND HORIZON.
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<emphasis id="99FFEAF0FE3AFFA0FBD6FB37FB67FB28" bold="true" box="[1136,1161,1157,1181]" pageId="13" pageNumber="466">—</emphasis>
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<materialsCitation id="1BE33CBFFE3AFFA0FB37FB37FB64FAE3" ID-GBIF-Occurrence="3028261301" pageId="13" pageNumber="466">
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Near Indamane village (or In Daman), at Mont Indamane (Mont Igdaman),
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<geoCoordinate id="CEBF5025FE3AFFA0FB49FB2DFAA8FB02" box="[1263,1350,1183,1207]" degrees="15" direction="north" minutes="26" orientation="latitude" pageId="13" pageNumber="466" precision="925" value="15.433333">15°26’N</geoCoordinate>
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,
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<geoCoordinate id="CEBF5025FE3AFFA0FAE8FB2DFA7EFB02" box="[1358,1424,1183,1207]" degrees="5" direction="east" minutes="48" orientation="longitude" pageId="13" pageNumber="466" precision="925" value="5.8">5°48’E</geoCoordinate>
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, at altitude
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<quantity id="6C739B07FE3AFFA0FCDDFB08FC53FB64" box="[891,957,1210,1234]" metricMagnitude="2" metricUnit="m" metricValue="4.779999999999999" pageId="13" pageNumber="466" unit="m" value="478.0">478 m</quantity>
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,
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<collectingRegion id="694FF800FE3AFFA0FC63FB08FBB5FB67" box="[965,1115,1210,1234]" country="Niger" name="Tahoua" pageId="13" pageNumber="466">Tahoua district</collectingRegion>
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, southwestern
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<collectingCountry id="D39C7672FE3AFFA0FB4CFB08FACDFB67" box="[1258,1315,1210,1234]" name="Niger" pageId="13" pageNumber="466">Niger</collectingCountry>
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, Iullemmeden basin. Upper Cretaceous, late Maastrichtian. Gypsiferous phosphatic bone bed in the upper part of Lower Sandstones and Mudstones of “Term I” of
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<bibRefCitation id="CF1A4B13FE3AFFA0FC18FABBFBB7FA94" author="GREIGERT J." box="[958,1113,1289,1313]" pageId="13" pageNumber="466" refId="ref28277" refString="GREIGERT J. 1966. - Description des formations cretacees el tertiaires du bassin des Iullemmeden. Carte geologique " Le Bassin des Iullemmeden ". Vol. 2. Direction des Mines et de la Geologie, Republique du Niger, BRGM, 234 p." type="book" year="1966">Greigert (1966)</bibRefCitation>
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, and in the base of the
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<taxonomicName id="6C8B4D61FE3AFFA0FA9BFAB8FC8AFA89" authority="shales" authorityName="Shales" class="Reptilia" family="Mosasauridae" genus="Mosasaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Squamata" pageId="13" pageNumber="462" phylum="Chordata" rank="genus">Mosasaurus shales</taxonomicName>
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or Farin-Doutchi Formation, FD1 member (see
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<bibRefCitation id="CF1A4B13FE3AFFA0FAF5FA96FC81FAE3" author="DIKOUMA M." pageId="13" pageNumber="466" refId="ref27029" refString="DIKOUMA M. 1990. - Fluctuations du niveau marin au Maastrichtien et au Paleocene dans le bassin intracratonique des Iullemmeden (Ader Doutchi, Niger). These de Doctorat. Universites de Bourgogne (France) et de Niamey (Niger), 272 p." type="book" year="1990">Dikouma [1990]</bibRefCitation>
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and
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<bibRefCitation id="CF1A4B13FE3AFFA0FC07FA8CFB92FAE3" author="DIKOUMA M. & LANG J. & LAURIN B. & PASCAL A. & BOLDAEFF M." box="[929,1148,1342,1366]" pageId="13" pageNumber="466" pagination="55 - 79" refId="ref27190" refString="DIKOUMA M., LANG J., LAURIN B., PASCAL A. & SALARD- CHE- BOLDAEFF M., 1994. - Biostratigraphy of some Maastrichtian and Palaeocene formations in the Iullemmeden Basin (southern Niger). Neues Jahrbuch fur Geologie und Palaontologie Abhandlungen 193: 55 - 79." type="journal article" year="1994">
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Dikouma
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<emphasis id="99FFEAF0FE3AFFA0FBA3FA8DFBDAFAE3" box="[1029,1076,1342,1366]" italics="true" pageId="13" pageNumber="466">et al.</emphasis>
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[1994]
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</bibRefCitation>
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).
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="E3916569FE3AFFA3FC8BFAC1FD2DF85E" lastPageId="14" lastPageNumber="467" pageId="13" pageNumber="466" type="diagnosis">
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<paragraph id="AB3436E2FE3AFFA3FC8BFAC1FD2DF85E" blockId="13.[811,1458,1394,2026]" lastBlockId="14.[131,776,1584,2027]" lastPageId="14" lastPageNumber="467" pageId="13" pageNumber="466">
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DIAGNOSIS.
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<emphasis id="99FFEAF0FE3AFFA0FC09FAC0FC26FA3F" bold="true" box="[943,968,1394,1418]" pageId="13" pageNumber="466">—</emphasis>
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A podocnemidid taxon diversified in the continental lineage of
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<taxonomicName id="6C8B4D61FE3AFFA0FC7EFA3EFB66FA11" authorityName="Broin" authorityYear="1988" box="[984,1160,1420,1444]" class="Reptilia" family="Podocnemididae" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="subFamily" subFamily="Erymnochelyinae">Erymnochelyinae</taxonomicName>
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posteriorly to the Gondwana break which separated Africa and South America. It is not a member of
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<taxonomicName id="6C8B4D61FE3AFFA0FC00FA73FBDAFA6C" box="[934,1076,1473,1497]" class="Reptilia" family="Podocnemididae" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="subTribe" subTribe="Stereogenyina">Stereogenyina</taxonomicName>
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because without their smooth, long and medially widened “secondary palate”. Diagnosed as unique: by the meatus quadrati shape, “narrow hot air balloon” shaped, i.e. notable for its great height for its width and inferiorly point-ed, closer to
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<emphasis id="99FFEAF0FE3AFFA0FC13F99EFC2CF9F6" box="[949,962,1580,1603]" italics="true" pageId="13" pageNumber="466">E</emphasis>
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r
|
||
<emphasis id="99FFEAF0FE3AFFA0FC6DF999FB0CF9F6" box="[971,1250,1579,1603]" italics="true" pageId="13" pageNumber="466">
|
||
ymnochelys
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FB98F999FB0CF9F6" authorityName="Hoffstetter, 1961 in Rage" authorityYear="1981" box="[1086,1250,1579,1603]" class="Reptilia" family="Podocnemididae" genus="Erymnochelys" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="species" species="madagascariensis">madagascariensis</taxonomicName>
|
||
</emphasis>
|
||
and to some of the
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FC89F9F4FC1EF9E8" authorityName="Broin" authorityYear="1977" box="[815,1008,1606,1630]" class="Reptilia" family="Podocnemididae" genus="Neochelys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="species" species="arenarum">
|
||
<emphasis id="99FFEAF0FE3AFFA0FC89F9F4FC1EF9E8" box="[815,1008,1606,1630]" italics="true" pageId="13" pageNumber="466">Neochelys arenarum</emphasis>
|
||
</taxonomicName>
|
||
specimens, instead of wider and rounded in other
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FCCCF9D2FBF3F9CD" authorityName="Broin" authorityYear="1988" box="[874,1053,1632,1656]" class="Reptilia" family="Podocnemididae" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="subFamily" subFamily="Erymnochelyinae">Erymnochelyinae</taxonomicName>
|
||
; by the flat and narrow anterior meatus wall without precolumellar fossa and with an incurved incisura columellae auris; developed triturating maxillary-palatine surfaces moderately widened, even barely posteriorly, with two strong crests, unique in erymnochelyines because the intermedial one is much less developed than the medial one, contrary to
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FA93F956FA49F949" authorityName="Wood" authorityYear="2003" box="[1333,1447,1764,1788]" class="Reptilia" family="Podocnemididae" genus="Turkanemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE3AFFA0FA93F956FA49F949" box="[1333,1447,1764,1788]" italics="true" pageId="13" pageNumber="466">Turkanemys</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FC8BF8B2FC79F8A2" box="[813,919,1792,1815]" class="Reptilia" family="Podocnemididae" genus="Dacquemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE3AFFA0FC8BF8B2FC79F8A2" box="[813,919,1792,1815]" italics="true" pageId="13" pageNumber="466">Dacquemys</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FC62F94DFBD7F8A2" authorityName="Gaffney, Meylan, Wood, Simons & De Almeida Campos" authorityYear="2011" box="[964,1081,1791,1815]" class="Reptilia" family="Podocnemididae" genus="Mogharemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE3AFFA0FC62F94DFBD7F8A2" box="[964,1081,1791,1815]" italics="true" pageId="13" pageNumber="466">Mogharemys</emphasis>
|
||
</taxonomicName>
|
||
. Oblique inclined anterolateral border of the processus trochlearis pterygoideus as in
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FAA7F8A8FA80F884" box="[1281,1390,1818,1841]" class="Reptilia" family="Podocnemididae" genus="Dacquemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE3AFFA0FAA7F8A8FA80F884" box="[1281,1390,1818,1841]" italics="true" pageId="13" pageNumber="466">Dacquemys</emphasis>
|
||
</taxonomicName>
|
||
. Long skull (phenotypic category), being longer for its width than in
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FC89F8FCFC62F8D3" authorityName="Bergounioux" authorityYear="1954" box="[815,908,1870,1894]" class="Reptilia" family="Podocnemididae" genus="Neochelys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE3AFFA0FC89F8FCFC62F8D3" box="[815,908,1870,1894]" italics="true" pageId="13" pageNumber="466">Neochelys</emphasis>
|
||
</taxonomicName>
|
||
, “
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FC01F8FDFBDCF8D3" authorityName="sensu Andrews" authorityYear="1903" baseAuthorityName="Andrews" baseAuthorityYear="1903" box="[935,1074,1870,1894]" class="Reptilia" family="Podocnemididae" genus="Neochelys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="species" species="fajumensis">
|
||
<emphasis id="99FFEAF0FE3AFFA0FC01F8FDFC54F8D3" box="[935,954,1871,1894]" italics="true" pageId="13" pageNumber="466">N</emphasis>
|
||
.
|
||
<emphasis id="99FFEAF0FE3AFFA0FC6CF8FCFBDCF8D3" box="[970,1074,1870,1894]" italics="true" pageId="13" pageNumber="466">fajumensis</emphasis>
|
||
</taxonomicName>
|
||
” and
|
||
<taxonomicName id="6C8B4D61FE3AFFA0FBD0F8FCFB1FF8D3" authorityName="Gaffney, Meylan, Wood, Simons & De Almeida Campos" authorityYear="2011" box="[1142,1265,1870,1894]" class="Reptilia" family="Podocnemididae" genus="Mogharemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="13" pageNumber="466" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE3AFFA0FBD0F8FCFB1FF8D3" box="[1142,1265,1870,1894]" italics="true" pageId="13" pageNumber="466">Mogharemys</emphasis>
|
||
</taxonomicName>
|
||
; moderately wide for its full length (79.20%), with a triangular snout but notably transversally wide anteriorly at the not pointed external naris, long palate and short basicranium (46% of the palate length up to this basicranium); as preserved (and possible when living) moderate postorbital roof cover joining approximately the mid length of the meatus quadrati superior border, with an incurved dorsal posterior notch; not much elevated skull, with a primitive straight oblique roof cover in lateral view, the more similarly with
|
||
<taxonomicName id="6C8B4D61FE39FFA3FF25F936FF19F929" authorityName="Wood" authorityYear="2003" box="[131,247,1668,1692]" class="Reptilia" family="Podocnemididae" genus="Turkanemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="14" pageNumber="467" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE39FFA3FF25F936FF19F929" box="[131,247,1668,1692]" italics="true" pageId="14" pageNumber="467">Turkanemys</emphasis>
|
||
</taxonomicName>
|
||
among the longer skulls category where the full roof cover is known, not being posteriorly elevated and rounded as the more globose
|
||
<taxonomicName id="6C8B4D61FE39FFA3FEAAF90EFE63F961" authorityName="Baur" authorityYear="1888" box="[268,397,1724,1748]" class="Reptilia" family="Podocnemididae" genus="Erymnochelys" kingdom="Animalia" order="Testudines" pageId="14" pageNumber="467" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE39FFA3FEAAF90EFE63F961" box="[268,397,1724,1748]" italics="true" pageId="14" pageNumber="467">Erymnochelys</emphasis>
|
||
</taxonomicName>
|
||
skull, and not being anteroposteriorly convex in lateral view and much roofed as
|
||
<emphasis id="99FFEAF0FE39FFA3FD94F96AFD49F95A" box="[562,679,1752,1775]" italics="true" pageId="14" pageNumber="467">
|
||
<taxonomicName id="6C8B4D61FE39FFA3FD94F96AFD4DF95A" box="[562,675,1752,1775]" class="Reptilia" family="Podocnemididae" genus="Dacquemys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="14" pageNumber="467" phylum="Chordata" rank="genus">Dacquemys</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
Similarly or not, according to a distribution in mosaic in other erymnochelyines: consistent interorbital width with orbits nearly laterally positioned, and with relatively moderate proportions: orbit height being less great than the interorbital space, maxillae relatively high below the orbits (height less great than the interorbital space) and antorbital space still less great, and shortest inter-premaxillae suture; external naris less wide than the interorbital space but its width greater than the orbit long transversal diameter. Relatively moderately widened carotid foramen, no ventral prootic.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="FFF4666AFE39FFA3FF22FA6CFC83F9B3" ID-DOI="http://doi.org/10.5281/zenodo.4447710" ID-Zenodo-Dep="4447710" httpUri="https://zenodo.org/record/4447710/files/figure.png" pageId="14" pageNumber="467" startId="14.[132,143,1502,1519]" targetBox="[192,1392,214,1461]" targetPageId="14">
|
||
<paragraph id="AB3436E2FE39FFA3FF22FA6CFC83F9B3" blockId="14.[132,1457,1502,1542]" pageId="14" pageNumber="467">
|
||
FIG. 5. —
|
||
<taxonomicName id="6C8B4D61FE39FFA3FF71FA6CFE75FA5A" authority="sahelica n." authorityName="SAHELICA N." box="[215,411,1502,1519]" class="Reptilia" family="Bothremydidae" genus="Ragechelus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Testudines" pageId="14" pageNumber="478" phylum="Chordata" rank="genus">
|
||
<emphasis id="99FFEAF0FE39FFA3FF71FA6CFE6AFA5A" box="[215,388,1502,1519]" italics="true" pageId="14" pageNumber="467">Ragechelus sahelica</emphasis>
|
||
<taxonomicNameLabel id="82CC578BFE39FFA3FE2DFA6CFE75FA5A" box="[395,411,1502,1519]" pageId="14" pageNumber="467" rank="species">n.</taxonomicNameLabel>
|
||
</taxonomicName>
|
||
gen., n. sp., Indamane, southwestern Niger, late Maastrichtian; photographs of the skull, holotype MNHN-RA-2018.0031:
|
||
<emphasis id="99FFEAF0FE39FFA3FF22FA47FF4DF9B3" bold="true" box="[132,163,1525,1542]" pageId="14" pageNumber="467">A -F</emphasis>
|
||
, dorsal, ventral, left lateral, anterior, right lateral and posterior views. Scale bar: 4 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="E3916569FE39FFA2FC8BF981FD09FB9A" lastPageId="15" lastPageNumber="468" pageId="14" pageNumber="467" type="description">
|
||
<paragraph id="AB3436E2FE39FFA3FC8BF981FB61F9FE" blockId="14.[811,1457,1587,2028]" box="[813,1167,1587,1613]" pageId="14" pageNumber="467">DESCRIPTION AND COMPARISONS</paragraph>
|
||
<paragraph id="AB3436E2FE39FFA3FC8BF9E1FC30F9D9" blockId="14.[811,1457,1587,2028]" box="[813,990,1619,1644]" pageId="14" pageNumber="467">
|
||
<emphasis id="99FFEAF0FE39FFA3FC8BF9E1FC30F9D9" box="[813,990,1619,1644]" italics="true" pageId="14" pageNumber="467">Preservation state</emphasis>
|
||
</paragraph>
|
||
<paragraph id="AB3436E2FE39FFA2FC8BF9C0FD09FB9A" blockId="14.[811,1457,1587,2028]" lastBlockId="15.[131,777,821,1071]" lastPageId="15" lastPageNumber="468" pageId="14" pageNumber="467">
|
||
The skull is covered by a phosphatic gypsiferous crust that has been partly cleaned but the scute sulci are not visible and the sutures are more or less apparent by places (sometimes more visible under water). Parts of the lateral cheeks and roof (mainly quadratojugal, part of both postorbitary and jugal) are missing, as well as the supraoccipital crest, and a very small part of the right exoccipital at the occipital condyle. The medioanterior palatal part is pushed into the skull by longitudinal breaks in the maxillae while the roof is also moderately pushed into the skull by longitudinal breaks at the maxillary-prefrontal suture and at the parietal suture with the prootic and opisthotic (making the skull a little less high than in life but preserving its oblique straight line of elevation toward the back). However, considering the potential height (from the crushing degree), the skull roof was not much dorso-ventrally elevated. The remaining crust covers the bones by places, making them thicker than in living animal; only a small part of the dorsal roof sutures and a part of the ventral sutures are visible or suspected; at least the dorsal sutures extremities appear at their free border (
|
||
<figureCitation id="33B02A67FE38FFA2FDDDFBA6FD55FB9A" box="[635,699,1044,1071]" captionStart="FIG" captionStartId="14.[132,143,1502,1519]" captionTargetBox="[192,1392,214,1461]" captionTargetId="figure-309@14.[189,1399,209,1471]" captionTargetPageId="14" captionText="FIG. 5. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian; photographs of the skull, holotype MNHN-RA-2018.0031: A-F, dorsal, ventral, left lateral, anterior, right lateral and posterior views. Scale bar: 4 cm." figureDoi="http://doi.org/10.5281/zenodo.4447710" httpUri="https://zenodo.org/record/4447710/files/figure.png" pageId="15" pageNumber="468">Figs 5</figureCitation>
|
||
,
|
||
<figureCitation id="33B02A67FE38FFA2FD6FFBA6FD39FB9B" box="[713,727,1044,1070]" captionStart="FIG" captionStartId="15.[132,143,604,621]" captionTargetBox="[436,1137,232,562]" captionTargetId="figure-756@15.[423,1165,214,572]" captionTargetPageId="15" captionText="FIG. 6. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian. Lateral view of the skull, holotype MNHN-RA-2018.0031. Abbreviations: an sq, antrum squamosum; co, condylus occipitalis; com q, commissura quadrati; fpp; foramen palatinum posterius; fr, frontal; ica+Et, incisura columellae auris with the Eustachian tube; ju, jugal; l pfr, left prefrontal; mq, meatus quadrati; mx, maxilla; na, external nare; pal, palatine; pfr, prefrontal; pmx, premaxilla; paq, processus articularis quadrati; pmx, premaxilla; po, postorbital; ppo, processus paroccipitalis opisthotici; pro, prootic; pter, pterygoid; ptp, processus trochlearis pterygoideus; q, quadrate; r paq, right processus articularis quadrati; r pter, right pterygoid; soc, supraoccipital; sq, squamosal; V, foramen trigemini; black arrow, position of the foramen stapediotemporale; blue and green dotted lines, hypothetic positions for the skull lateral notch border; red line, border of the palatal medial crest. Scale bar: 4 cm." figureDoi="http://doi.org/10.5281/zenodo.4447712" httpUri="https://zenodo.org/record/4447712/files/figure.png" pageId="15" pageNumber="468">6</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |