360 lines
51 KiB
XML
360 lines
51 KiB
XML
<document id="423C0CE0354C3BF6440F19BF6A07EDDE" ID-CLB-Dataset="4889" ID-DOI="10.11646/zootaxa.3884.6.1" ID-GBIF-Dataset="d69a4a4f-fbba-436e-b053-4a771735b9a0" ID-ISSN="1175-5326" ID-Zenodo-Dep="4951742" ID-ZooBank="BD4F285D-358C-4350-88EA-7FA94513D930" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1623727472316" checkinUser="felipe" docAuthor="Sandy, Michael R., Hryniewicz, Krzysztof, Hammer, Øyvind, Nakrem, Hans Arne & Little, Crispin T. S." docDate="2014" docId="466F6C33624EFFA696854284FBA43193" docLanguage="en" docName="zt03884p532.pdf" docOrigin="Zootaxa 3884 (6)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Seductorithyris septemtrionalis Sandy & Hryniewicz & Hammer & Nakrem & Little 2014, sp. nov." docType="treatment" docVersion="7" lastPageNumber="526" masterDocId="BA56144B6258FFBF96124213FFD43043" masterDocTitle="Brachiopods from Late Jurassic-Early Cretaceous hydrocarbon seep deposits, central Spitsbergen, Svalbard" masterLastPageNumber="532" masterPageNumber="501" pageNumber="523" updateTime="1699016241816" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:mods id="E58DD9D22C7EFBF7BF8ED84E254E0D90" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="747994D7EA746102807C20D9E2E97037">
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<mods:title id="D10743A0FE8A8FFBCFF90E8D23EFBD51">Brachiopods from Late Jurassic-Early Cretaceous hydrocarbon seep deposits, central Spitsbergen, Svalbard</mods:title>
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<mods:name id="20BE4910B056AE8193519F5068E5A454" type="personal">
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<mods:roleTerm id="FB13A166A45AB6F9916FF9C311DA656F">Author</mods:roleTerm>
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<mods:namePart id="E423338BF1EBBC03C6D12DB311CEDA37">Sandy, Michael R.</mods:namePart>
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<mods:affiliation id="36B66D14AC6D0077661BA411F0913E34">Department of Geology, University of Dayton, Dayton, OH 45469 - 2364, USA. E-mail: msandy 1 @ udayton. edu</mods:affiliation>
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<mods:name id="3DF8F4624D3895C07638ED4A899B3583" type="personal">
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<mods:roleTerm id="9127AE583C987638ABC003CE421A1D80">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="F5822415C7430ACB69136C41AACE8335">Hryniewicz, Krzysztof</mods:namePart>
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<mods:affiliation id="9F6727DBF3304A031CA60EB59A8DF036">Natural History Museum, University of Oslo, P. O. Box 1172, NO- 0318 Oslo, Norway. & Current address: Institute of Paleobiology, Polish Academy of Sciences, ul. Twarda 51 / 55, 00 - 818 Warszawa, Poland.</mods:affiliation>
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</mods:name>
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<mods:name id="826DAE722BFB8A4EEFE80A5821A34ECA" type="personal">
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<mods:roleTerm id="6EB10625D0F67547C4CCF345E41E4249">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="D6C9A32076C60CA9E31E05C4D009744C">Hammer, Øyvind</mods:namePart>
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<mods:affiliation id="7A6F30C3F51BBDA3725C2507F28CF8FF">Natural History Museum, University of Oslo, P. O. Box 1172, NO- 0318 Oslo, Norway.</mods:affiliation>
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</mods:name>
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<mods:name id="89E998B7A81BAFB7BD6C631706A1A616" type="personal">
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</mods:role>
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<mods:namePart id="2347DCB34EA387F6F66416C94342FC8B">Nakrem, Hans Arne</mods:namePart>
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<mods:affiliation id="FA69503528B6C3A7CDCEBA2A0BBE8BE7">Natural History Museum, University of Oslo, P. O. Box 1172, NO- 0318 Oslo, Norway.</mods:affiliation>
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<mods:roleTerm id="69D181DDA9D87737EE2F876B618AA5B0">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="C7E9DE6F65DAD4B692655C3D02015509">Little, Crispin T. S.</mods:namePart>
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<mods:affiliation id="8980B601608C7A135695E7E52C37FB7B">School of Earth and Environment, University of Leeds, Leeds LS 2 9 JT, United Kingdom.</mods:affiliation>
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<mods:typeOfResource id="0BA997ADE8F33FDDA54880A6BDE59D03">text</mods:typeOfResource>
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<mods:title id="ABB4B8CD4192F7C505615EE3F2622E40">Zootaxa</mods:title>
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<mods:part id="E98018018DB1B8A8623D961486FA798E">
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<mods:date id="0C3BC446388196E2D9D296E6FC8E4825">2014</mods:date>
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<mods:number id="84F4403CC691C516DC7D6AB22208C59B">2014-11-19</mods:number>
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<mods:number id="59C8B2793BF1A6012D1431E799B7BDEE">3884</mods:number>
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<mods:identifier id="EF426EB329B88AE17A8C686870A899AE" type="DOI">10.11646/zootaxa.3884.6.1</mods:identifier>
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<mods:identifier id="29DABC152996C90E52826C35EF4521E6" type="GBIF-Dataset">d69a4a4f-fbba-436e-b053-4a771735b9a0</mods:identifier>
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<treatment id="466F6C33624EFFA696854284FBA43193" ID-DOI="http://doi.org/10.5281/zenodo.4952592" ID-GBIF-Taxon="184851320" ID-Zenodo-Dep="4952592" LSID="urn:lsid:plazi:treatment:466F6C33624EFFA696854284FBA43193" httpUri="http://treatment.plazi.org/id/466F6C33624EFFA696854284FBA43193" lastPageId="25" lastPageNumber="526" pageId="22" pageNumber="523">
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<subSubSection id="86DC8EAE624EFFA996854284FDA730F1" box="[151,627,151,178]" pageId="22" pageNumber="523" type="nomenclature">
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<paragraph id="CE79DD25624EFFA996854284FDA730F1" blockId="22.[151,627,151,211]" box="[151,627,151,178]" pageId="22" pageNumber="523">
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<heading id="95316A49624EFFA996854284FDA730F1" bold="true" box="[151,627,151,178]" fontSize="11" level="1" pageId="22" pageNumber="523" reason="1">
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<emphasis id="FCB20137624EFFA996854284FDA730F1" bold="true" box="[151,627,151,178]" pageId="22" pageNumber="523">
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<taxonomicName id="09C6A6A6624EFFA996854284FDDA30F2" authority="Sandy & Hryniewicz & Hammer & Nakrem & Little, 2014" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[151,526,151,177]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="septemtrionalis" status="sp. nov.">
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<emphasis id="FCB20137624EFFA996854284FDDA30F2" bold="true" box="[151,526,151,177]" italics="true" pageId="22" pageNumber="523">Seductorithyris septemtrionalis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="E781BC4C624EFFA99407428BFDA730F1" box="[533,627,152,178]" pageId="22" pageNumber="523" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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||
</heading>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="86DC8EAE624EFFA9968542A9FC44315B" pageId="22" pageNumber="523" type="description">
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<paragraph id="CE79DD25624EFFA9968542A9FEAF3090" blockId="22.[151,627,151,211]" box="[151,379,186,211]" pageId="22" pageNumber="523">
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<figureCitation id="56FDC1A0624EFFA9968542A9FE873090" box="[151,339,186,211]" captionStart="FIGURE 11" captionStartId="23.[151,250,1803,1825]" captionTargetBox="[155,1435,196,1757]" captionTargetId="figure-86@23.[151,1436,193,1758]" captionTargetPageId="23" captionText="FIGURE 11. Seductorithyris septemtrionalis gen. et sp. nov. 1–4. Holotype, PMO 224.896, seep 9, dorsal, ventral, lateral, and anterior views. 5–8. PMO 224.911, seep 9, dorsal, ventral, lateral, and anterior views. 9–12. PMO 224.913, seep 9, dorsal, ventral, lateral, and anterior views. 13–16. PMO 227.430, seep 9, dorsal, ventral, lateral, and anterior views. Specimen serially sectioned (Figure 12). Scale bar = 1 cm." figureDoi="http://doi.org/10.5281/zenodo.4951796" httpUri="https://zenodo.org/record/4951796/files/figure.png" pageId="22" pageNumber="523">Figs. 11.1–11.16</figureCitation>
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,
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<figureCitation id="56FDC1A0624EFFA9974D42A9FEAF3090" box="[351,379,186,211]" captionStart="FIGURE 12" captionStartId="24.[151,250,1886,1908]" captionTargetBox="[179,1411,203,1825]" captionTargetId="figure-104@24.[179,1413,193,1874]" captionTargetPageId="24" captionText="FIGURE 12. Transverse serial sections of Seductorithyris septemtrionalis gen. and sp. nov., seep 9, PMO 227.430. Serial sections prepared perpendicular to maximum length of the specimen, numbering of sections starts at 0.0 mm the initial section through the specimen. Dotted lines delimit groups of sections drawn at the same magnification. For section 11.4 mm enlargement of brachidial flanges shown adjacent to lower magnification drawing. Dimensions of sectioned specimen: L 25.3+; W 25.1+; T 13.9 mm. Scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4951804" httpUri="https://zenodo.org/record/4951804/files/figure.png" pageId="22" pageNumber="523">12</figureCitation>
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</paragraph>
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||
<paragraph id="CE79DD25624EFFA996854311FC44315B" blockId="22.[151,912,258,280]" box="[151,912,258,280]" pageId="22" pageNumber="523">
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<date id="BA78FBE5624EFFA996854311FED7315B" box="[151,259,258,280]" pageId="22" pageNumber="523" value="2011-05">
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2011
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<taxonomicName id="09C6A6A6624EFFA996E34310FED7315B" box="[241,259,259,280]" pageId="22" pageNumber="523" rank="variety" variety="partim">v.</taxonomicName>
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||
</date>
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||
partim ‘
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<taxonomicName id="09C6A6A6624EFFA9974B4311FE18315B" authorityName="Middlemiss" authorityYear="1959" box="[345,460,258,280]" class="Rhynchonellata" family="Sellithyrididae" genus="Cyrtothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
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<emphasis id="FCB20137624EFFA9974B4311FE18315B" box="[345,460,258,280]" italics="true" pageId="22" pageNumber="523">Cyrtothyris</emphasis>
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</taxonomicName>
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’ sp.—Hammer
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<emphasis id="FCB20137624EFFA994624310FD70315B" box="[624,676,258,280]" italics="true" pageId="22" pageNumber="523">et al.</emphasis>
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, p. 20, table 2, fig. 7.S.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="86DC8EAE624EFFA996854356FBBE31E5" pageId="22" pageNumber="523" type="materials_examined">
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||
<paragraph id="CE79DD25624EFFA996854356FC8B31C1" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
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||
<emphasis id="FCB20137624EFFA996854356FE10311D" bold="true" box="[151,452,325,350]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">Material and occurrence.</emphasis>
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<typeStatus id="117D6387624EFFA997D94356FDEC311D" box="[459,568,325,350]" pageId="22" pageNumber="523" type="holotype">Holotype</typeStatus>
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: PMO 224.896;
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<typeStatus id="117D6387624EFFA994FC4355FC8A311D" box="[750,862,326,350]" pageId="22" pageNumber="523" type="paratype">paratypes</typeStatus>
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: PMO 217.198, PMO 224.892–893, PMO 224.911, PMO 224.913, PMO 227.427?, PMO 227.430. All from seep 9.
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</paragraph>
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<paragraph id="CE79DD25624EFFA996D5439EFBBE31E5" blockId="22.[151,1437,325,2006]" box="[199,1130,397,422]" pageId="22" pageNumber="523">
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||
<materialsCitation id="7EAED778624EFFA996D5439EFBB331E5" ID-GBIF-Occurrence="3337015302" box="[199,1127,397,422]" latitude="78.313866" location="Knorringfjellet" longLatPrecision="1" longitude="16.183027" municipality="central Spitsbergen" pageId="22" pageNumber="523" specimenCount="1" typeStatus="holotype">
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||
<emphasis id="FCB20137624EFFA996D5439EFEB131E5" bold="true" box="[199,357,397,422]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">
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||
<typeStatus id="117D6387624EFFA996D5439EFED631E5" box="[199,258,397,422]" pageId="22" pageNumber="523">Type</typeStatus>
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locality.
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</emphasis>
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<location id="CB198BFE624EFFA9977E439EFDC331E5" LSID="urn:lsid:plazi:treatment:466F6C33624EFFA696854284FBA43193:CB198BFE624EFFA9977E439EFDC331E5" box="[364,535,397,422]" latitude="78.313866" longLatPrecision="1" longitude="16.183027" municipality="central Spitsbergen" name="Knorringfjellet" pageId="22" pageNumber="523">Knorringfjellet</location>
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,
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<collectingMunicipality id="2E1D475F624EFFA99430439EFD2831E5" box="[546,764,397,422]" pageId="22" pageNumber="523">central Spitsbergen</collectingMunicipality>
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,
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<geoCoordinate id="ABF2BBE2624EFFA99515439EFC6731E5" box="[775,947,397,422]" degrees="78" direction="north" minutes="18" orientation="latitude" pageId="22" pageNumber="523" precision="1" seconds="49.9" value="78.313866">N78° 18’ 49.9”</geoCoordinate>
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<geoCoordinate id="ABF2BBE2624EFFA995A8439EFBB331E5" box="[954,1127,397,422]" degrees="16" direction="east" minutes="10" orientation="longitude" pageId="22" pageNumber="523" precision="1" seconds="58.9" value="16.183027">E16° 10’ 58.9”</geoCoordinate>
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</materialsCitation>
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||
.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="86DC8EAE624EFFA996D543A2FDDC3189" box="[199,520,433,458]" pageId="22" pageNumber="523" type="diagnosis">
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<paragraph id="CE79DD25624EFFA996D543A2FDDC3189" blockId="22.[151,1437,325,2006]" box="[199,520,433,458]" pageId="22" pageNumber="523">
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||
<emphasis id="FCB20137624EFFA996D543A2FE953189" bold="true" box="[199,321,433,458]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">Diagnosis.</emphasis>
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As for the genus.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="86DC8EAE624EFFA996D543C6FAA83275" pageId="22" pageNumber="523" type="etymology">
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||
<paragraph id="CE79DD25624EFFA996D543C6FAA83275" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
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||
<emphasis id="FCB20137624EFFA996D543C6FE9A31AD" bold="true" box="[199,334,469,494]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">Etymology.</emphasis>
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For the northern high-latitudes that Spitsbergen occupies (
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<emphasis id="FCB20137624EFFA995F543C5FB5E31AE" box="[999,1162,470,493]" italics="true" pageId="22" pageNumber="523">septem triōnēs</emphasis>
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[also septentrional]: the seven stars of the constellation of
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<taxonomicName id="09C6A6A6624EFFA9943D43E9FD6C3252" authority="Major" authorityName="Major" box="[559,696,506,529]" class="Arachnida" family="Araneidae" genus="Ursa" kingdom="Animalia" order="Araneae" pageId="22" pageNumber="523" phylum="Arthropoda" rank="genus">
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<emphasis id="FCB20137624EFFA9943D43E9FD6C3252" box="[559,696,506,529]" italics="true" pageId="22" pageNumber="523">Ursa Major</emphasis>
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</taxonomicName>
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[the Great Bear, or the Plough]—a constellation visible in the northern hemisphere throughout the year and a useful aid to finding North; also “of the north” or “north wind”).
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</paragraph>
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</subSubSection>
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||
<subSubSection id="86DC8EAE624EFFA996D54052FDB933A5" pageId="22" pageNumber="523" type="description">
|
||
<paragraph id="CE79DD25624EFFA996D54052FAF9321A" blockId="22.[151,1437,325,2006]" box="[199,1325,577,602]" pageId="22" pageNumber="523">
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||
<emphasis id="FCB20137624EFFA996D54052FDC43219" bold="true" box="[199,528,577,602]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">
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||
Dimensions of the
|
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<typeStatus id="117D6387624EFFA997B14052FDD83219" box="[419,524,577,602]" pageId="22" pageNumber="523" type="holotype">holotype</typeStatus>
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||
.
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</emphasis>
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PMO 224.896—Length
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<quantity id="093E70C0624EFFA9953A4052FC5A321A" box="[808,910,577,602]" metricMagnitude="-2" metricUnit="m" metricValue="3.37" pageId="22" pageNumber="523" unit="mm" value="33.7">33.7 mm</quantity>
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||
, width
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<quantity id="093E70C0624EFFA995F34052FB93321A" box="[993,1095,577,602]" metricMagnitude="-2" metricUnit="m" metricValue="2.98" pageId="22" pageNumber="523" unit="mm" value="29.8">29.8 mm</quantity>
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||
, thickness
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||
<quantity id="093E70C0624EFFA992D04052FAFD321A" box="[1218,1321,577,602]" metricMagnitude="-2" metricUnit="m" metricValue="1.61" pageId="22" pageNumber="523" unit="mm" value="16.1">16.1 mm</quantity>
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.
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</paragraph>
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<paragraph id="CE79DD25624EFFA996D54076FE9432A9" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
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<emphasis id="FCB20137624EFFA996D54076FE8C323D" bold="true" box="[199,344,613,638]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">Description.</emphasis>
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Length slightly greater than width, rounded outline, with the dorsal valve almost circular. Biconvex profile with the dorsal valve tending to be flatter, but not necessarily. Smooth shell with growth lines. Erect beak. Ventral valve umbo has a broad round keel. Lateral commissure straight, anterior commissure rectimarginate.
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</paragraph>
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<paragraph id="CE79DD25624EFFA996D540E6FDB933A5" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
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Cardinal process developed (
|
||
<figureCitation id="56FDC1A0624EFFA9940640E6FDBD334D" box="[532,617,757,782]" captionStart="FIGURE 12" captionStartId="24.[151,250,1886,1908]" captionTargetBox="[179,1411,203,1825]" captionTargetId="figure-104@24.[179,1413,193,1874]" captionTargetPageId="24" captionText="FIGURE 12. Transverse serial sections of Seductorithyris septemtrionalis gen. and sp. nov., seep 9, PMO 227.430. Serial sections prepared perpendicular to maximum length of the specimen, numbering of sections starts at 0.0 mm the initial section through the specimen. Dotted lines delimit groups of sections drawn at the same magnification. For section 11.4 mm enlargement of brachidial flanges shown adjacent to lower magnification drawing. Dimensions of sectioned specimen: L 25.3+; W 25.1+; T 13.9 mm. Scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4951804" httpUri="https://zenodo.org/record/4951804/files/figure.png" pageId="22" pageNumber="523">Fig. 12</figureCitation>
|
||
, sections
|
||
<quantity id="093E70C0624EFFA994CE40E6FCBD334D" box="[732,873,757,782]" metricMagnitude="-4" metricUnit="m" metricValue="9.5" metricValueMax="12.0" metricValueMin="7.0" pageId="22" pageNumber="523" unit="mm" value="0.95" valueMax="1.2" valueMin="0.7">0.7–1.2 mm</quantity>
|
||
), flat, horizontal and wide hinge plates deflected dorsally (sections 1.2–2.3), crural bases develop on inner margin of hinge plates (sections 1.6–2.3) and have a clubbed appearance initially (section 1.8). Crura are initially weakly deflected dorsally (sections 2.3–2.7). Transverse band is curved and low-arched (section 6.6, this is approximately at the mid-length of the brachidium, based on the distance the loop was traced), anterior flanges of the brachidium extend significantly beyond the transverse band (at least
|
||
<quantity id="093E70C0624EFFA997BF41BAFDD33381" box="[429,519,937,962]" metricMagnitude="-3" metricUnit="m" metricValue="5.8" pageId="22" pageNumber="523" unit="mm" value="5.8">5.8 mm</quantity>
|
||
). Loop traced to at least
|
||
<quantity id="093E70C0624EFFA9950941BAFCAA3382" box="[795,894,937,962]" metricMagnitude="-2" metricUnit="m" metricValue="1.14" pageId="22" pageNumber="523" unit="mm" value="11.4">11.4 mm</quantity>
|
||
from initial section through brachiopod (ventral umbo of sectioned specimen is damaged).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="86DC8EAE624EFFA696D541E2FBA43193" lastPageId="25" lastPageNumber="526" pageId="22" pageNumber="523" type="discussion">
|
||
<paragraph id="CE79DD25624EFFA996D541E2FB27359E" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
|
||
<emphasis id="FCB20137624EFFA996D541E2FE983449" bold="true" box="[199,332,1009,1034]" inLineHeading="true" pageId="22" pageNumber="523" reason="1">Discussion.</emphasis>
|
||
The beak of the ventral valve is erect in
|
||
<taxonomicName id="09C6A6A6624EFFA9950E41E2FBAF3449" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[796,1147,1009,1034]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="septemtrionalis">
|
||
<emphasis id="FCB20137624EFFA9950E41E2FBAF3449" box="[796,1147,1009,1034]" italics="true" pageId="22" pageNumber="523">Seductorithyris septemtrionalis</emphasis>
|
||
</taxonomicName>
|
||
whereas in “
|
||
<taxonomicName id="09C6A6A6624EFFA9930241E2FA5B3449" authorityName="Middlemiss" authorityYear="1959" box="[1296,1423,1009,1034]" class="Rhynchonellata" family="Sellithyrididae" genus="Cyrtothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA9930241E2FA5B3449" box="[1296,1423,1009,1034]" italics="true" pageId="22" pageNumber="523">Cyrtothyris</emphasis>
|
||
</taxonomicName>
|
||
”
|
||
<emphasis id="FCB20137624EFFA996854605FF3C346E" box="[151,232,1046,1069]" italics="true" pageId="22" pageNumber="523">maynci</emphasis>
|
||
from East
|
||
<collectingCountry id="B6D19DB5624EFFA9977E4606FE35346D" box="[364,481,1045,1070]" name="Greenland" pageId="22" pageNumber="523">Greenland</collectingCountry>
|
||
the beak is slightly produced, suberect, and with a massive umbo dominated by a large circular foramen (
|
||
<bibRefCitation id="AA57A0D4624EFFA997BB462AFDE03411" author="Owen, E. F." box="[425,564,1081,1106]" pageId="22" pageNumber="523" pagination="1 - 19" refId="ref17259" refString="Owen, E. F. (1976) Some Lower Cretaceous brachiopods from East Greenland. Meddelelser om GrOnland, 171 (3), 1 - 19." type="journal article" year="1976">Owen 1976</bibRefCitation>
|
||
). The outline of the Spitsbergen material is comparable to that of rounded terebratulide species discussed by
|
||
<bibRefCitation id="AA57A0D4624EFFA99423464EFCD93435" author="Middlemiss, F. A." box="[561,781,1117,1142]" pageId="22" pageNumber="523" pagination="21 - 104" refId="ref16391" refString="Middlemiss, F. A. (1976) Lower Cretaceous Terebratulidina of northern England and Germany and their geological background. Geologisches Jahrbuch, 30, 21 - 104." type="journal article" year="1976">Middlemiss (1976)</bibRefCitation>
|
||
from the Claxby Ironstone Formation of
|
||
<collectingRegion id="0C0213C7624EFFA9931A464EFA4C3435" box="[1288,1432,1117,1142]" country="United Kingdom" name="Lincolnshire" pageId="22" pageNumber="523">Lincolnshire</collectingRegion>
|
||
,
|
||
<collectingCountry id="B6D19DB5624EFFA996854692FF2334D9" box="[151,247,1153,1178]" name="United Kingdom" pageId="22" pageNumber="523">England</collectingCountry>
|
||
, such as
|
||
<taxonomicName id="09C6A6A6624EFFA997744692FD0934D9" authority="(Davidson)" baseAuthorityName="Davidson" box="[358,733,1153,1178]" class="Rhynchonellata" family="Terebratulidae" genus="Rouillieria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="tilbyensis">
|
||
<emphasis id="FCB20137624EFFA997744692FD8034D9" box="[358,596,1153,1178]" italics="true" pageId="22" pageNumber="523">Rouillieria tilbyensis</emphasis>
|
||
(Davidson)
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="09C6A6A6624EFFA995094692FB8434D9" authority="(Walker)" baseAuthorityName="Walker" baseAuthorityYear="1868" box="[795,1104,1153,1178]" class="Rhynchonellata" family="Sellithyrididae" genus="Cyrtothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="cyrta">
|
||
<emphasis id="FCB20137624EFFA995094692FC0B34DA" box="[795,991,1153,1178]" italics="true" pageId="22" pageNumber="523">Cyrtothyris cyrta</emphasis>
|
||
(Walker)
|
||
</taxonomicName>
|
||
. Both of these species show rounded and elongated morphotypes and appear however to have a more massive pedicle foramen and may develop a uniplicate anterior commissure, which helps to distinguish them from
|
||
<taxonomicName id="09C6A6A6624EFFA9922646DAFA4034A1" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[1076,1428,1225,1250]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="septemtrionalis">
|
||
<emphasis id="FCB20137624EFFA9922646DAFA4034A1" box="[1076,1428,1225,1250]" italics="true" pageId="22" pageNumber="523">Seductorithyris septemtrionalis</emphasis>
|
||
</taxonomicName>
|
||
. The rounded outline of
|
||
<taxonomicName id="09C6A6A6624EFFA997B346FEFCD53545" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[417,769,1261,1286]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="septemtrionalis">
|
||
<emphasis id="FCB20137624EFFA997B346FEFCD53545" box="[417,769,1261,1286]" italics="true" pageId="22" pageNumber="523">Seductorithyris septemtrionalis</emphasis>
|
||
</taxonomicName>
|
||
is similar to that of
|
||
<taxonomicName id="09C6A6A6624EFFA995F746FEFB2A3546" box="[997,1278,1261,1286]" class="Rhynchonellata" family="Loboidothyrididae" genus="Pinaxiothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="campestris">
|
||
<emphasis id="FCB20137624EFFA995F746FEFB2A3546" box="[997,1278,1261,1286]" italics="true" pageId="22" pageNumber="523">Pinaxiothyris campestris</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation id="AA57A0D4624EFFA9931E46FEFA4C3545" author="Dagys, A. S." box="[1292,1432,1261,1286]" pageId="22" pageNumber="523" pagination="1 - 167" refId="ref14289" refString="Dagys, A. S. (1968) Jurskiye i rannemelovye brakhiopody Severa Sibiri [Jurassic and Early Cretaceous brachiopods from northern Siberia]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii I Geofiziki (IGIG) Trudy [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], 41, 1 - 167. [In Russian]" type="journal article" year="1968">Dagys 1968</bibRefCitation>
|
||
, pl. 10, figs. 1–3), although the latter appears to have a slight elongation to its outline, reaching a greater size. One specimen from Spitsbergen is tentatively referred to
|
||
<taxonomicName id="09C6A6A6624EFFA994F54726FB9A350D" authority="Dagys" authorityName="Dagys" box="[743,1102,1333,1358]" class="Rhynchonellata" family="Loboidothyrididae" genus="Pinaxiothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="campestris">
|
||
<emphasis id="FCB20137624EFFA994F54726FC2B350E" box="[743,1023,1333,1358]" italics="true" pageId="22" pageNumber="523">Pinaxiothyris campestris</emphasis>
|
||
Dagys
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="56FDC1A0624EFFA9924C4726FADC350D" box="[1118,1288,1333,1358]" captionStart="FIGURE 13" captionStartId="26.[151,250,1852,1874]" captionTargetBox="[237,1342,213,1804]" captionTargetId="figure-120@26.[234,1344,193,1804]" captionTargetPageId="26" captionText="FIGURE 13. 1–4. Pinaxiothyris campestris? Dagys, PMO 227.429, seep 9, dorsal, ventral, lateral, and anterior views. 5–8. Placothyris kegeli? Harper et al., PMO 224.922, seep 3, dorsal, ventral, lateral, and anterior views. 9–12. Placothyris kegeli Harper et al., MGUH 27501, Brorson Halvø, Wollaston Forland, North–East Greenland; Albrechts Bugt Member, Lower Valanginian. Specimen serially sectioned by Sandy in Harper et al. (2005, fig. 3). 13–20. Zittelina? sp. 13–16. PMO 224.869, seep 9, dorsal, ventral, lateral, and anterior views. 17–20. PMO 224.885, seep 9, dorsal, ventral, lateral, and anterior views. Scale bars = 1 cm." figureDoi="http://doi.org/10.5281/zenodo.4951808" httpUri="https://zenodo.org/record/4951808/files/figure.png" pageId="22" pageNumber="523">Fig. 13.1–13.4</figureCitation>
|
||
). It is similar in outline to an elongate specimen figured by
|
||
<bibRefCitation id="AA57A0D4624EFFA994874749FCF23531" author="Dagys, A. S." box="[661,806,1369,1394]" pageId="22" pageNumber="523" pagination="1 - 167" refId="ref14289" refString="Dagys, A. S. (1968) Jurskiye i rannemelovye brakhiopody Severa Sibiri [Jurassic and Early Cretaceous brachiopods from northern Siberia]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii I Geofiziki (IGIG) Trudy [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], 41, 1 - 167. [In Russian]" type="journal article" year="1968">Dagys (1968</bibRefCitation>
|
||
, pl. 10, fig. 4). The development of the cardinal process, flat hinge plates, crura, crural processes, and transverse band show similarities between the internal characters of
|
||
<taxonomicName id="09C6A6A6624EFFA9968547B2FE2335F9" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[151,503,1441,1466]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="species" species="septemtrionalis">
|
||
<emphasis id="FCB20137624EFFA9968547B2FE2335F9" box="[151,503,1441,1466]" italics="true" pageId="22" pageNumber="523">Seductorithyris septemtrionalis</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="56FDC1A0624EFFA9941547B2FD8D35F9" box="[519,601,1441,1466]" captionStart="FIGURE 12" captionStartId="24.[151,250,1886,1908]" captionTargetBox="[179,1411,203,1825]" captionTargetId="figure-104@24.[179,1413,193,1874]" captionTargetPageId="24" captionText="FIGURE 12. Transverse serial sections of Seductorithyris septemtrionalis gen. and sp. nov., seep 9, PMO 227.430. Serial sections prepared perpendicular to maximum length of the specimen, numbering of sections starts at 0.0 mm the initial section through the specimen. Dotted lines delimit groups of sections drawn at the same magnification. For section 11.4 mm enlargement of brachidial flanges shown adjacent to lower magnification drawing. Dimensions of sectioned specimen: L 25.3+; W 25.1+; T 13.9 mm. Scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4951804" httpUri="https://zenodo.org/record/4951804/files/figure.png" pageId="22" pageNumber="523">Fig. 12</figureCitation>
|
||
) and
|
||
<taxonomicName id="09C6A6A6624EFFA9948B47B2FCE435F9" authorityName="Dagys" authorityYear="1968" box="[665,816,1441,1466]" class="Rhynchonellata" family="Loboidothyrididae" genus="Pinaxiothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA9948B47B2FCE435F9" box="[665,816,1441,1466]" italics="true" pageId="22" pageNumber="523">Pinaxiothyris</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation id="AA57A0D4624EFFA9955247B2FC0735F9" author="Dagys, A. S." box="[832,979,1441,1466]" pageId="22" pageNumber="523" pagination="1 - 167" refId="ref14289" refString="Dagys, A. S. (1968) Jurskiye i rannemelovye brakhiopody Severa Sibiri [Jurassic and Early Cretaceous brachiopods from northern Siberia]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii I Geofiziki (IGIG) Trudy [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], 41, 1 - 167. [In Russian]" type="journal article" year="1968">Dagys, 1968</bibRefCitation>
|
||
, fig. 52). The latter has hinge plates that are not as wide and the crural bases do not show the slight dorsal deflection seen in
|
||
<taxonomicName id="09C6A6A6624EFFA9925347D6FB38359D" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[1089,1260,1477,1502]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA9925347D6FB38359D" box="[1089,1260,1477,1502]" italics="true" pageId="22" pageNumber="523">Seductorithyris</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="CE79DD25624EFFA996D547FAFAFF36D1" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
|
||
Another genus considered during classification of this species was
|
||
<emphasis id="FCB20137624EFFA995A847FAFB8B3641" box="[954,1119,1513,1538]" italics="true" pageId="22" pageNumber="523">
|
||
<taxonomicName id="09C6A6A6624EFFA995A847FAFB8F3641" box="[954,1115,1513,1538]" class="Rhynchonellata" family="Sellithyrididae" genus="Moutonithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">Moutonithyris</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
characterized by distinctive horizontal hinge plates and crural bases derived from the inner margins of the hinge plates. However, the crescentshaped attached crura seen in
|
||
<taxonomicName id="09C6A6A6624EFFA997F64422FD573609" box="[484,643,1585,1610]" class="Rhynchonellata" family="Sellithyrididae" genus="Moutonithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA997F64422FD573609" box="[484,643,1585,1610]" italics="true" pageId="22" pageNumber="523">Moutonithyris</emphasis>
|
||
</taxonomicName>
|
||
(e.g.
|
||
<bibRefCitation id="AA57A0D4624EFFA994D04422FC5C3609" author="Middlemiss, F. A." box="[706,904,1585,1610]" pageId="22" pageNumber="523" pagination="21 - 104" refId="ref16391" refString="Middlemiss, F. A. (1976) Lower Cretaceous Terebratulidina of northern England and Germany and their geological background. Geologisches Jahrbuch, 30, 21 - 104." type="journal article" year="1976">Middlemiss 1976</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="AA57A0D4624EFFA995814422FB8B3609" author="Nekvasilova, O." box="[915,1119,1585,1610]" pageId="22" pageNumber="523" pagination="49 - 81" refId="ref16818" refString="Nekvasilova, O. (1980) Terebratulida (Brachiopoda) from the Lower Cretaceous of Stramberk (north-east Moravia), Czechoslovakia. Journal of Geological Sciences, Palaeontology, 23, 49 - 81." type="journal article" year="1980">Nekvasilova 1980</bibRefCitation>
|
||
) are different from the clubshaped crural bases of
|
||
<taxonomicName id="09C6A6A6624EFFA997854446FD96362D" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[407,578,1621,1646]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA997854446FD96362D" box="[407,578,1621,1646]" italics="true" pageId="22" pageNumber="523">Seductorithyris</emphasis>
|
||
</taxonomicName>
|
||
. In addition,
|
||
<taxonomicName id="09C6A6A6624EFFA994CB4446FCAC362D" box="[729,888,1621,1646]" class="Rhynchonellata" family="Sellithyrididae" genus="Moutonithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA994CB4446FCAC362D" box="[729,888,1621,1646]" italics="true" pageId="22" pageNumber="523">Moutonithyris</emphasis>
|
||
</taxonomicName>
|
||
has a lower-arched transverse band compared to that of
|
||
<taxonomicName id="09C6A6A6624EFFA996F4446AFE4536D1" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[230,401,1657,1682]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="22" pageNumber="523" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB20137624EFFA996F4446AFE4536D1" box="[230,401,1657,1682]" italics="true" pageId="22" pageNumber="523">Seductorithyris</emphasis>
|
||
</taxonomicName>
|
||
, and does not appear to share the long flanges of the brachidium seen in the latter.
|
||
</paragraph>
|
||
<paragraph id="CE79DD25624EFFA996D5448EFC793706" blockId="22.[151,1437,325,2006]" pageId="22" pageNumber="523">
|
||
The nature of the horizontal hinge-plates with the rounded crural bases could be described as clubbed (after
|
||
<bibRefCitation id="AA57A0D4624EFFA9968544D2FE603699" author="Cox, M. M. & Middlemiss, F. A." box="[151,436,1729,1754]" pageId="22" pageNumber="523" pagination="411 - 441" refId="ref14203" refString="Cox, M. M. & Middlemiss, F. A. (1978) Terebratulacea from the Cretaceous Shenley Limestone. Palaeontology, 21, 411 - 441." type="journal article" year="1978">Cox & Middlemiss 1978</bibRefCitation>
|
||
) due to secondary overgrowth (
|
||
<figureCitation id="56FDC1A0624EFFA9953044D2FCA33699" box="[802,887,1729,1754]" captionStart="FIGURE 12" captionStartId="24.[151,250,1886,1908]" captionTargetBox="[179,1411,203,1825]" captionTargetId="figure-104@24.[179,1413,193,1874]" captionTargetPageId="24" captionText="FIGURE 12. Transverse serial sections of Seductorithyris septemtrionalis gen. and sp. nov., seep 9, PMO 227.430. Serial sections prepared perpendicular to maximum length of the specimen, numbering of sections starts at 0.0 mm the initial section through the specimen. Dotted lines delimit groups of sections drawn at the same magnification. For section 11.4 mm enlargement of brachidial flanges shown adjacent to lower magnification drawing. Dimensions of sectioned specimen: L 25.3+; W 25.1+; T 13.9 mm. Scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4951804" httpUri="https://zenodo.org/record/4951804/files/figure.png" pageId="22" pageNumber="523">Fig. 12</figureCitation>
|
||
, section 1.8). The crura project weakly dorsally and do not conform to those of any described Mesozoic terebratulide. The hinge-plates are short in length (sections 0.7–2.7) and the loop develops rapidly to the crural processes (section 4.0) before reaching the transverse band at
|
||
<quantity id="093E70C0624EFFA99685453EFF243706" box="[151,240,1837,1862]" metricMagnitude="-3" metricUnit="m" metricValue="6.6" pageId="22" pageNumber="523" unit="mm" value="6.6">6.6 mm</quantity>
|
||
. The loop flanges were traced for another
|
||
<quantity id="093E70C0624EFFA994DB453EFCCB3706" box="[713,799,1837,1862]" metricMagnitude="-3" metricUnit="m" metricValue="5.8" pageId="22" pageNumber="523" unit="mm" value="5.8">5.8 mm</quantity>
|
||
to
|
||
<quantity id="093E70C0624EFFA99550453EFC7C3706" box="[834,936,1837,1862]" metricMagnitude="-2" metricUnit="m" metricValue="1.14" pageId="22" pageNumber="523" unit="mm" value="11.4">11.4 mm</quantity>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="CE79DD25624EFFA696D54542FCF531EE" blockId="22.[151,1437,325,2006]" lastBlockId="25.[151,1436,151,464]" lastPageId="25" lastPageNumber="526" pageId="22" pageNumber="523">
|
||
The sectioned specimen might represent a juvenile specimen because of its size and hence also in its loop development. The ontogenetic development of the brachidium can hardly be said to be well understood among terebratulide brachiopods, and even less so perhaps the relationship between the hinge plates and the crural bases. However, these elements of the cardinalia appear stable in juvenile brachiopods judging from serial sections of growth-series of brachiopods (e.g.
|
||
<bibRefCitation id="AA57A0D46241FFA69432428BFD7F30F3" author="Dagys, A. S." box="[544,683,151,176]" pageId="25" pageNumber="526" pagination="22 - 58" refId="ref14358" refString="Dagys, A. S. (1972) Postembrional'noye razvitiye brakhidiya pozdnepaleozoyskikh i rannemezozoyskikh Terebratulida [Postembryonic development of the brachidium of late Paleozoic and early Mesozoic terebratulids]. In: Dagys, A. S. & Ivanovskii, A. B. (Eds.), Morphologicheskiye i filogeneticheskiye voprosy paleontologii [Morphological and Phylogenetic Questions of Paleontology]. Akademia Nauk SSSR Sibiroskoe Otdelenie Institut Geologii i Geofiziki (IGIG) Trudy. vol. 112. [Institute of Geology and Geophysics, Academy of Sciences of the USSR, Siberian Branch, Transactions], pp. 22 - 58. [In Russian]" type="journal article" year="1972">Dagys 1972</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="AA57A0D46241FFA694A54284FCB730F3" author="Smirnova, T. N." box="[695,867,151,176]" pageId="25" pageNumber="526" pagination="40 - 46" refId="ref18273" refString="Smirnova, T. N. (1973) K izucheniiu ontogeneticheskikh izmenenii rhinkhonellid (Brachiopoda) [Contribution to the study of ontogenetic changes in rhynchonellids (Brachiopoda)]. Paleontologicheskii Zhurnal, 1973 (4), 40 - 46. [In Russian]" type="journal article" year="1973">Smirnova 1973</bibRefCitation>
|
||
(for rhynchonellides), 1984, 2008; see also
|
||
<bibRefCitation id="AA57A0D46241FFA69344428BFF273096" author="Lee, D. L. & Carlson, S. J. & Buening, N. & Samson, C. R." pageId="25" pageNumber="526" pagination="56 - 70" refId="ref15507" refString="Lee, D. L., Carlson, S. J., Buening, N. & Samson, C. R. (2001) Variation in the loops of two Recent species of Liothyrella (Brachiopoda: Terebratuloidea) from New Zealand and the South Orkney Islands. In: Brunton, C. H. C, Cocks, L. R. M. & Long, S. L. (Eds.), Brachiopods Past and Present, The Systematics Association Special Volume, pp. 56 - 70. [Series 63] http: // dx. doi. org / 10.1201 / 9780203210437. ch 7" type="book chapter" year="2001">
|
||
Lee
|
||
<emphasis id="FCB201376241FFA6939A428AFF603096" italics="true" pageId="25" pageNumber="526">et al.</emphasis>
|
||
2001
|
||
</bibRefCitation>
|
||
and
|
||
<bibRefCitation id="AA57A0D46241FFA6973842AFFDDE3096" author="Tort, A. & Laurin, B." box="[298,522,188,213]" pageId="25" pageNumber="526" pagination="261 - 273" refId="ref18926" refString="Tort, A. & Laurin, B. (2001) Intra- and interspecific variation in internal structures of the genus Stenosarina (Brachiopoda, Terebratulida) using landmarks. Journal of Paleontology, 7, 261 - 273. http: // dx. doi. org / 10.1666 / 0022 - 3360 (2001) 075 <0261: IAIVII> 2.0. CO; 2" type="journal article" year="2001">Tort & Laurin 2001</bibRefCitation>
|
||
). In
|
||
<taxonomicName id="09C6A6A66241FFA6942E42AFFD333096" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[572,743,188,213]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="25" pageNumber="526" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB201376241FFA6942E42AFFD333096" box="[572,743,188,213]" italics="true" pageId="25" pageNumber="526">Seductorithyris</emphasis>
|
||
</taxonomicName>
|
||
the crural bases develop as rounded to cuneate processes that project weakly dorsally, or at least do not project ventrally while attached to the hinge plates, thereby making a unique configuration that suggests a new brachiopod genus that is certainly distinct from its contemporaries. This configuration of the clubbed crura is quite different from the pendant or keeled crural bases typical of representatives of the terebratuloid
|
||
<taxonomicName id="09C6A6A66241FFA69434435FFD723126" authorityName="Sahni" authorityYear="1925" box="[550,678,332,357]" class="Rhynchonellata" family="Terebratulidae" genus="Gibbithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="25" pageNumber="526" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB201376241FFA69434435FFD723126" box="[550,678,332,357]" italics="true" pageId="25" pageNumber="526">Gibbithyris</emphasis>
|
||
</taxonomicName>
|
||
or the loboidothyridoid
|
||
<taxonomicName id="09C6A6A66241FFA695A9435FFBE83126" authorityName="Westphal" authorityYear="1970" box="[955,1084,332,357]" class="Rhynchonellata" genus="Placothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="25" pageNumber="526" phylum="Brachiopoda" rank="genus">
|
||
<emphasis id="FCB201376241FFA695A9435FFBE83126" box="[955,1084,332,357]" italics="true" pageId="25" pageNumber="526">Placothyris</emphasis>
|
||
</taxonomicName>
|
||
. A specimen from seep 3 (
|
||
<figureCitation id="56FDC1A06241FFA6937C435FFEDE31CB" captionStart="FIGURE 13" captionStartId="26.[151,250,1852,1874]" captionTargetBox="[237,1342,213,1804]" captionTargetId="figure-120@26.[234,1344,193,1804]" captionTargetPageId="26" captionText="FIGURE 13. 1–4. Pinaxiothyris campestris? Dagys, PMO 227.429, seep 9, dorsal, ventral, lateral, and anterior views. 5–8. Placothyris kegeli? Harper et al., PMO 224.922, seep 3, dorsal, ventral, lateral, and anterior views. 9–12. Placothyris kegeli Harper et al., MGUH 27501, Brorson Halvø, Wollaston Forland, North–East Greenland; Albrechts Bugt Member, Lower Valanginian. Specimen serially sectioned by Sandy in Harper et al. (2005, fig. 3). 13–20. Zittelina? sp. 13–16. PMO 224.869, seep 9, dorsal, ventral, lateral, and anterior views. 17–20. PMO 224.885, seep 9, dorsal, ventral, lateral, and anterior views. Scale bars = 1 cm." figureDoi="http://doi.org/10.5281/zenodo.4951808" httpUri="https://zenodo.org/record/4951808/files/figure.png" pageId="25" pageNumber="526">Fig. 13.5–13.8</figureCitation>
|
||
; Upper Volgian) is comparable to
|
||
<taxonomicName id="09C6A6A66241FFA694B4437CFCA231CB" box="[678,886,367,392]" class="Rhynchonellata" genus="Placothyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="25" pageNumber="526" phylum="Brachiopoda" rank="species" species="kegeli">
|
||
<emphasis id="FCB201376241FFA694B4437CFCA231CB" box="[678,886,367,392]" italics="true" pageId="25" pageNumber="526">Placothyris kegeli</emphasis>
|
||
</taxonomicName>
|
||
from Wollaston Forland, East
|
||
<collectingCountry id="B6D19DB56241FFA692F4437CFA8F31CB" box="[1254,1371,367,392]" name="Greenland" pageId="25" pageNumber="526">Greenland</collectingCountry>
|
||
(
|
||
<figureCitation id="56FDC1A06241FFA6937D437CFECC31EE" captionStart="FIGURE 13" captionStartId="26.[151,250,1852,1874]" captionTargetBox="[237,1342,213,1804]" captionTargetId="figure-120@26.[234,1344,193,1804]" captionTargetPageId="26" captionText="FIGURE 13. 1–4. Pinaxiothyris campestris? Dagys, PMO 227.429, seep 9, dorsal, ventral, lateral, and anterior views. 5–8. Placothyris kegeli? Harper et al., PMO 224.922, seep 3, dorsal, ventral, lateral, and anterior views. 9–12. Placothyris kegeli Harper et al., MGUH 27501, Brorson Halvø, Wollaston Forland, North–East Greenland; Albrechts Bugt Member, Lower Valanginian. Specimen serially sectioned by Sandy in Harper et al. (2005, fig. 3). 13–20. Zittelina? sp. 13–16. PMO 224.869, seep 9, dorsal, ventral, lateral, and anterior views. 17–20. PMO 224.885, seep 9, dorsal, ventral, lateral, and anterior views. Scale bars = 1 cm." figureDoi="http://doi.org/10.5281/zenodo.4951808" httpUri="https://zenodo.org/record/4951808/files/figure.png" pageId="25" pageNumber="526">Fig. 13.9–13.12</figureCitation>
|
||
; Valanginian, infilling matrix is a red micrite).
|
||
</paragraph>
|
||
<caption id="9AB98DAD624FFFA896854518FDF9373E" ID-DOI="http://doi.org/10.5281/zenodo.4951796" ID-Zenodo-Dep="4951796" httpUri="https://zenodo.org/record/4951796/files/figure.png" pageId="23" pageNumber="524" startId="23.[151,250,1803,1825]" targetBox="[155,1435,196,1757]" targetPageId="23">
|
||
<paragraph id="CE79DD25624FFFA896854518FDF9373E" blockId="23.[151,1436,1803,1917]" pageId="23" pageNumber="524">
|
||
<emphasis id="FCB20137624FFFA896854518FECA3762" bold="true" box="[151,286,1803,1825]" pageId="23" pageNumber="524">FIGURE 11.</emphasis>
|
||
<taxonomicName id="09C6A6A6624FFFA897364518FDB43762" authority="Sandy & Hryniewicz & Hammer & Nakrem & Little, 2014" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[292,608,1803,1825]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="23" pageNumber="524" phylum="Brachiopoda" rank="species" species="septemtrionalis" status="gen. et sp. nov.">
|
||
<emphasis id="FCB20137624FFFA897364518FDB43762" box="[292,608,1803,1825]" italics="true" pageId="23" pageNumber="524">Seductorithyris septemtrionalis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="FCB20137624FFFA894754518FCD73762" bold="true" box="[615,771,1803,1825]" pageId="23" pageNumber="524">
|
||
<taxonomicNameLabel id="E781BC4C624FFFA894754518FCD73762" box="[615,771,1803,1825]" pageId="23" pageNumber="524" rank="species">gen. et sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
1–4. Holotype, PMO 224.896, seep 9, dorsal, ventral, lateral, and anterior views. 5–8. PMO 224.911, seep 9, dorsal, ventral, lateral, and anterior views. 9–12. PMO 224.913, seep 9, dorsal, ventral, lateral, and anterior views. 13–16. PMO 227.430, seep 9, dorsal, ventral, lateral, and anterior views. Specimen serially sectioned (Figure 12). Scale bar = 1 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="9AB98DAD6240FFA79685454DFDE937AD" ID-DOI="http://doi.org/10.5281/zenodo.4951804" ID-Zenodo-Dep="4951804" httpUri="https://zenodo.org/record/4951804/files/figure.png" pageId="24" pageNumber="525" startId="24.[151,250,1886,1908]" targetBox="[179,1411,203,1825]" targetPageId="24">
|
||
<paragraph id="CE79DD256240FFA79685454DFDE937AD" blockId="24.[151,1436,1886,2030]" pageId="24" pageNumber="525">
|
||
<emphasis id="FCB201376240FFA79685454DFEF63737" bold="true" box="[151,290,1886,1908]" pageId="24" pageNumber="525">FIGURE 12.</emphasis>
|
||
Transverse serial sections of
|
||
<taxonomicName id="09C6A6A66240FFA79449454DFC4E3737" authority="Sandy & Hryniewicz & Hammer & Nakrem & Little, 2014" authorityName="Sandy & Hryniewicz & Hammer & Nakrem & Little" authorityYear="2014" box="[603,922,1886,1908]" class="Rhynchonellata" family="Loboidothyrididae" genus="Seductorithyris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Terebratulida" pageId="24" pageNumber="525" phylum="Brachiopoda" rank="species" species="septemtrionalis" status="gen. and sp. nov.">
|
||
<emphasis id="FCB201376240FFA79449454DFC4E3737" box="[603,922,1886,1908]" italics="true" pageId="24" pageNumber="525">Seductorithyris septemtrionalis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="FCB201376240FFA795B1454DFB8A3737" bold="true" box="[931,1118,1886,1908]" pageId="24" pageNumber="525">
|
||
<taxonomicNameLabel id="E781BC4C6240FFA795B1454DFB8A3737" box="[931,1118,1886,1908]" pageId="24" pageNumber="525" rank="species">gen. and sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, seep 9, PMO 227.430. Serial sections prepared perpendicular to maximum length of the specimen, numbering of sections starts at 0.0 mm the initial section through the specimen. Dotted lines delimit groups of sections drawn at the same magnification. For section 11.4 mm enlargement of brachidial flanges shown adjacent to lower magnification drawing. Dimensions of sectioned specimen: L 25.3+; W 25.1+; T 13.9 mm. Scale bars = 1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="CE79DD256241FFA696D543A4FBA43193" blockId="25.[151,1436,151,464]" box="[199,1136,439,464]" pageId="25" pageNumber="526">
|
||
<emphasis id="FCB201376241FFA696D543A4FD153193" bold="true" box="[199,705,439,464]" inLineHeading="true" pageId="25" pageNumber="526" reason="1">Stratigraphic and geographic distribution.</emphasis>
|
||
Uppermost Ryazanian of Spitsbergen.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |