473 lines
63 KiB
XML
473 lines
63 KiB
XML
<document id="1F52890F2B874807306A63DDEBB8499D" ID-DOI="10.1111/j.1096-3642.2003.00096.x" ID-ISSN="0024-4082" ID-Zenodo-Dep="5439219" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630443964049" checkinUser="carolina" docAuthor="Abdala, F. & Ribeiro, A. M." docDate="2003" docId="03EE87B5974E1546FCEFE2E7FD2EFA78" docLanguage="en" docName="j.1096-3642.2003.00096.x.pdf" docOrigin="Zoological Journal of the Linnean Society 139 (4)" docSource="https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2003.00096.x" docStyle="DocumentStyle:0DD8C314D74634CE09062A86991413F8.2:ZoolJLinnSoc.2002-2009.journal_article" docStyleId="0DD8C314D74634CE09062A86991413F8" docStyleName="ZoolJLinnSoc.2002-2009.journal_article" docStyleVersion="2" docTitle="Santacruzodon hopsoni Abdala & Ribeiro 2003" docType="treatment" docVersion="3" lastPageNumber="534" masterDocId="FFD7FFCD974F1543FFB3E13EFFDFFF89" masterDocTitle="A new traversodontid cynodont from the Santa Maria Formation (Ladinian-Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids" masterLastPageNumber="545" masterPageNumber="529" pageNumber="530" updateTime="1699272455972" updateUser="plazi" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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<mods:title id="BDF35B1553B4B8D5CDC0D31AF29A18FF">A new traversodontid cynodont from the Santa Maria Formation (Ladinian-Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids</mods:title>
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<mods:namePart id="871B028865C3A8D9CAB91A35E87DC88F">Abdala, F.</mods:namePart>
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<mods:namePart id="4983A430E7729257B378ED0C828ED74F">Ribeiro, A. M.</mods:namePart>
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<mods:title id="A288692830417ED54AE8EC7F01048714">Zoological Journal of the Linnean Society</mods:title>
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<mods:part id="CFD79068A2E5AC94BF560C880F61E880">
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<mods:date id="AB0263C3936C13B4844844056C196635">2003</mods:date>
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<mods:number id="83F6BE7BDA0A214A6A9205AAD6CF2F51">2003-12-31</mods:number>
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<mods:number id="47D9F21063D56A1D0FF633CD0D3E55D0">139</mods:number>
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<mods:identifier id="3EE10D96793A8B6123301195E1F19901" type="DOI">10.1111/j.1096-3642.2003.00096.x</mods:identifier>
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<treatment id="03EE87B5974E1546FCEFE2E7FD2EFA78" LSID="urn:lsid:plazi:treatment:03EE87B5974E1546FCEFE2E7FD2EFA78" httpUri="http://treatment.plazi.org/id/03EE87B5974E1546FCEFE2E7FD2EFA78" lastPageId="5" lastPageNumber="534" pageId="1" pageNumber="530">
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<subSubSection id="C35D6528974E1542FCEFE2E7FAAEFC78" box="[860,1393,985,1009]" pageId="1" pageNumber="530" type="nomenclature">
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<paragraph id="8BF836A3974E1542FCEFE2E7FAAEFC78" blockId="1.[849,1405,953,1009]" box="[860,1393,985,1009]" pageId="1" pageNumber="530">
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<heading id="D0B081CF974E1542FCEFE2E7FAAEFC78" box="[860,1393,985,1009]" centered="true" fontSize="9" level="2" pageId="1" pageNumber="530" reason="2">
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<emphasis id="B933EAB1974E1542FCEFE2E7FB3FFC78" bold="true" box="[860,1248,985,1009]" pageId="1" pageNumber="530">
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<taxonomicName id="4C474D20974E1542FCEFE2E7FB7EFC79" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[860,1185,985,1009]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="535" phylum="Chordata" rank="species" species="hopsoni">
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<emphasis id="B933EAB1974E1542FCEFE2E7FB7EFC79" bold="true" box="[860,1185,985,1009]" italics="true" pageId="1" pageNumber="530">SANTACRUZODON HOPSONI</emphasis>
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</taxonomicName>
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GEN.
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</emphasis>
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ET
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<emphasis id="B933EAB1974E1542FABEE2E3FAAEFC78" bold="true" box="[1293,1393,985,1009]" pageId="1" pageNumber="530">SP. NOV.</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C35D6528974E1546FC80E534FD2EFA78" lastPageId="5" lastPageNumber="534" pageId="1" pageNumber="530" type="materials_examined">
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<paragraph id="8BF836A3974E1542FC80E534FBD3FBB6" blockId="1.[819,1434,1034,1087]" pageId="1" pageNumber="530">
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<emphasis id="B933EAB1974E1542FC80E534FC42FB96" box="[819,925,1034,1055]" italics="true" pageId="1" pageNumber="530">
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<typeStatus id="54FC8801974E1542FC80E534FC45FB96" box="[819,922,1034,1055]" pageId="1" pageNumber="530" type="holotype">Holotype</typeStatus>
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.
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</emphasis>
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MCN PV 2768: fragmentary skull with lower jaws (
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<figureCitation id="137C2A26974E1542FC0EE517FC23FBB6" box="[957,1020,1065,1087]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="1" pageNumber="530">Fig. 1</figureCitation>
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).
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</paragraph>
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<paragraph id="8BF836A3974E1542FC80E56AFC1FFB6C" blockId="1.[819,1435,1108,1253]" pageId="1" pageNumber="530">
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<emphasis id="B933EAB1974E1542FC80E56AFBCBFBE3" box="[819,1044,1108,1130]" italics="true" pageId="1" pageNumber="530">Referred specimens.</emphasis>
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MCN PV 2751, MCN PV 2752 (
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<figureCitation id="137C2A26974E1542FC89E54DFC79FB00" box="[826,934,1139,1161]" captionStart="Figure 2" captionStartId="3.[155,233,1770,1789]" captionTargetBox="[209,1378,201,1737]" captionTargetId="figure-68@3.[209,1379,201,1737]" captionTargetPageId="3" captionText="Figure 2. Santacruzodon hopsoni gen et sp. nov. (A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="1" pageNumber="530">Fig. 2B,C</figureCitation>
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),
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<collectionCode id="ED56AE66974E1542FC09E54DFC2BFB01" box="[954,1012,1139,1160]" country="Brazil" httpUri="http://grbio.org/cool/bqgs-f9q8" name="Pontificia Universidade Catolica do Rio Grande do Sul" pageId="1" pageNumber="530">MCP</collectionCode>
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4044 PV: three lower jaws; MCN PV 2770: incomplete maxilla with postcanines (
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<figureCitation id="137C2A26974E1542FA8AE5AFFA51FB2E" box="[1337,1422,1169,1191]" captionStart="Figure 2" captionStartId="3.[155,233,1770,1789]" captionTargetBox="[209,1378,201,1737]" captionTargetId="figure-68@3.[209,1379,201,1737]" captionTargetPageId="3" captionText="Figure 2. Santacruzodon hopsoni gen et sp. nov. (A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="1" pageNumber="530">Fig. 2A</figureCitation>
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);
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<collectionCode id="ED56AE66974E1542FC80E58EFCB2FB4C" box="[819,877,1200,1221]" country="Brazil" httpUri="http://grbio.org/cool/bqgs-f9q8" name="Pontificia Universidade Catolica do Rio Grande do Sul" pageId="1" pageNumber="530">MCP</collectionCode>
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4034 PV: fragmentary skull and lower jaw with postcanines.
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</paragraph>
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<paragraph id="8BF836A3974E1542FC80E5C4FB88FA20" blockId="1.[819,1435,1274,1449]" pageId="1" pageNumber="530">
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<emphasis id="B933EAB1974E1542FC80E5C4FCBCFA86" box="[819,867,1274,1295]" italics="true" pageId="1" pageNumber="530">Age.</emphasis>
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The
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<collectingRegion id="4983F841974E1542FC16E5C4FBF3FA86" box="[933,1068,1274,1295]" country="Argentina" name="Santa Cruz" pageId="1" pageNumber="530">Santa Cruz</collectingRegion>
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do
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<collectingRegion id="4983F841974E1542FBEFE5C4FB5DFA99" box="[1116,1154,1274,1296]" country="Tanzania" name="Kusini Unguja" pageId="1" pageNumber="530">Sul</collectingRegion>
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cynodonts most closely resemble predominantly Carnian forms such as
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<taxonomicName id="4C474D20974E1542FC80E409FC1FFAC5" box="[819,960,1335,1356]" class="Reptilia" family="Traversodontidae" genus="Exaeretodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="genus">
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<emphasis id="B933EAB1974E1542FC80E409FC1FFAC5" box="[819,960,1335,1356]" italics="true" pageId="1" pageNumber="530">Exaeretodon</emphasis>
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</taxonomicName>
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, and Ladinian forms such as
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<taxonomicName id="4C474D20974E1542FA84E406FC50FAE2" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="genus">
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<emphasis id="B933EAB1974E1542FA84E406FC50FAE2" italics="true" pageId="1" pageNumber="530">Massetognathus</emphasis>
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</taxonomicName>
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; thus a Late Ladinian age is assumed for the
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<collectingRegion id="4983F841974E1542FC80E44BFC68FA03" box="[819,951,1397,1418]" country="Argentina" name="Santa Cruz" pageId="1" pageNumber="530">Santa Cruz</collectingRegion>
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do
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<collectingRegion id="4983F841974E1542FC51E44BFBD7FA02" box="[994,1032,1397,1419]" country="Tanzania" name="Kusini Unguja" pageId="1" pageNumber="530">Sul</collectingRegion>
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Fauna of the Santa Maria Formation (
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<bibRefCitation id="EFD64B52974E1542FCDCE4ADFB94FA20" author="Abdala F & Ribeiro AM & Schultz CL" box="[879,1099,1427,1449]" pageId="1" pageNumber="530" pagination="669 - 687" refId="ref7947" refString="Abdala F, Ribeiro AM, Schultz CL. 2001. A rich cynodont fauna of Santa Cruz do Sul, Santa Maria Formation (Middle- Late Triassic), Southern Brazil. Neues Jahrbuch fur Geologie und Palaontologie, Monatshefte 2001: 669 - 687." type="journal article" year="2001">
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Abdala
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<emphasis id="B933EAB1974E1542FC7AE4AAFBD7FA21" box="[969,1032,1427,1449]" italics="true" pageId="1" pageNumber="530">et al.,</emphasis>
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2001
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</bibRefCitation>
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).
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</paragraph>
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<paragraph id="8BF836A3974E1542FC80E481FB17F9C6" blockId="1.[819,1434,1471,1615]" pageId="1" pageNumber="530">
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<emphasis id="B933EAB1974E1542FC80E481FC6FFA5D" box="[819,944,1471,1492]" italics="true" pageId="1" pageNumber="530">Etymology.</emphasis>
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Named after the city of
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<collectingRegion id="4983F841974E1542FB76E481FA99FA5D" box="[1221,1350,1471,1492]" country="Argentina" name="Santa Cruz" pageId="1" pageNumber="530">Santa Cruz</collectingRegion>
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do
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<collectingRegion id="4983F841974E1542FADFE481FA4AFA5C" box="[1388,1429,1471,1493]" country="Tanzania" name="Kusini Unguja" pageId="1" pageNumber="530">Sul</collectingRegion>
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, where the new species was discovered, plus
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<emphasis id="B933EAB1974E1542FA93E4E3FA95FA7B" box="[1312,1354,1501,1522]" italics="true" pageId="1" pageNumber="530">don</emphasis>
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(tooth; Greek) and
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<taxonomicName id="4C474D20974E1542FC09E4C2FBCDF998" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[954,1042,1532,1553]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="species" species="hopsoni">
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<emphasis id="B933EAB1974E1542FC09E4C2FBCDF998" box="[954,1042,1532,1553]" italics="true" pageId="1" pageNumber="530">hopsoni</emphasis>
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</taxonomicName>
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in honour of Dr James A. Hopson, in recognition of his vast contribution to our knowledge of nonmammalian therapsids.
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</paragraph>
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<paragraph id="8BF836A3974E1547FC80E75BFF12FE39" blockId="1.[819,1435,1637,1904]" lastBlockId="4.[142,758,196,432]" lastPageId="4" lastPageNumber="533" pageId="1" pageNumber="530">
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<emphasis id="B933EAB1974E1542FC80E75BFB1BF9F3" box="[819,1220,1637,1658]" italics="true" pageId="1" pageNumber="530">
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Diagnosis.
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<taxonomicName id="4C474D20974E1542FC06E75BFB1BF9F3" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[949,1220,1637,1658]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="species" species="hopsoni">Santacruzodon hopsoni</taxonomicName>
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</emphasis>
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exhibits a combination of features observed in other traversodontid cynodonts and an autapomorphy. It features a ballshaped ventrally projecting suborbital process such as occurs in
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<taxonomicName id="4C474D20974E1542FC63E7E1FABAF97D" authority="Flynn et al., 2000" authorityName="Flynn" authorityYear="2000" box="[976,1381,1759,1781]" class="Reptilia" family="Traversodontidae" genus="Dadadon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="species" species="isaloi">
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<emphasis id="B933EAB1974E1542FC63E7E1FB5CF97D" box="[976,1155,1759,1780]" italics="true" pageId="1" pageNumber="530">Dadadon isaloi</emphasis>
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<bibRefCitation id="EFD64B52974E1542FB23E7E1FABAF97D" author="Flynn JJ & Parrish JM & Rakotosamimanana B & Ranivoharimanana L & Simpson WF & Wyss AR" box="[1168,1381,1759,1781]" pageId="1" pageNumber="530" pagination="422 - 427" refId="ref8621" refString="Flynn JJ, Parrish JM, Rakotosamimanana B, Ranivoharimanana L, Simpson WF, Wyss AR. 2000. New traversodontids (Synapsida: Eucynodontia) from the Triassic of Madagascar. Journal of Vertebrate Paleontology 20: 422 - 427." type="journal article" year="2000">
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Flynn
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<emphasis id="B933EAB1974E1542FB52E7DEFAC0F97D" box="[1249,1311,1759,1781]" italics="true" pageId="1" pageNumber="530">et al.,</emphasis>
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2000
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</bibRefCitation>
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</taxonomicName>
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; the incisors are flattened bucco-lingually as in
|
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<taxonomicName id="4C474D20974E1542FA84E7C1FC25F8BB" authorityName="Romer" authorityYear="1967" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="species" species="pascuali">
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<emphasis id="B933EAB1974E1542FA84E7C1FC25F8BB" italics="true" pageId="1" pageNumber="530">Massetognathus pascuali</emphasis>
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</taxonomicName>
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, but showing a series of 7-9 marginal cuspules as in
|
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<taxonomicName id="4C474D20974E1542FB80E605FC38F8F9" authority="(Hopson, 1984)" baseAuthorityName="Hopson" baseAuthorityYear="1984" class="Reptilia" family="Traversodontidae" genus="Arctotraversodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="1" pageNumber="530" phylum="Chordata" rank="species" species="plemmyridon">
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||
<emphasis id="B933EAB1974E1542FB80E605FA45F8D9" box="[1075,1434,1851,1872]" italics="true" pageId="1" pageNumber="530">Arctotraversodon plemmyridon</emphasis>
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||
(
|
||
<bibRefCitation id="EFD64B52974E1542FC89E664FC00F8F9" author="Hopson JA" box="[826,991,1882,1904]" pageId="1" pageNumber="530" pagination="181 - 201" refId="ref9159" refString="Hopson JA. 1984. Late Triassic traversodont cynodonts from Nova Scotia and southern Africa. Palaeontologia Africana 25: 181 - 201." type="journal article" year="1984">Hopson, 1984</bibRefCitation>
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||
)
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||
</taxonomicName>
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||
; the upper postcanines present an anterior small crest conformed by a series of cingular cuspules as in ‘
|
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<taxonomicName id="4C474D20974B1547FECBE1DDFE24FF71" box="[376,507,227,248]" class="Reptilia" family="Traversodontidae" genus="Scalenodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="genus">
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||
<emphasis id="B933EAB1974B1547FECBE1DDFE24FF71" box="[376,507,227,248]" italics="true" pageId="4" pageNumber="533">Scalenodon</emphasis>
|
||
</taxonomicName>
|
||
’
|
||
<taxonomicName id="4C474D20974B1547FDBEE1DDFF17FE9F" authority="Crompton, 1972" authorityName="Crompton" authorityYear="1972" class="Reptilia" family="Traversodontidae" genus="Scalenodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="species" species="attridgei">
|
||
<emphasis id="B933EAB1974B1547FDBEE1DDFDB0FF71" box="[525,623,227,248]" italics="true" pageId="4" pageNumber="533">attridgei</emphasis>
|
||
<bibRefCitation id="EFD64B52974B1547FDCFE1DDFF17FE9F" author="Crompton AW" pageId="4" pageNumber="533" pagination="29 - 71" refId="ref8534" refString="Crompton AW. 1972. Postcanine occlusion in cynodonts and tritylodonts. Bulletin of the British Museum (Natural History), Geology 21: 29 - 71." type="journal article" year="1972">Crompton, 1972</bibRefCitation>
|
||
</taxonomicName>
|
||
. As in many other cynodonts (e.g.
|
||
<taxonomicName id="4C474D20974B1547FD21E03CFF35FEBC" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974B1547FD21E03CFF35FEBC" italics="true" pageId="4" pageNumber="533">Massetognathus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C474D20974B1547FEB4E01EFE4BFEBC" box="[263,404,288,309]" class="Reptilia" family="Traversodontidae" genus="Exaeretodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974B1547FEB4E01EFE4BFEBC" box="[263,404,288,309]" italics="true" pageId="4" pageNumber="533">Exaeretodon</emphasis>
|
||
</taxonomicName>
|
||
),
|
||
<taxonomicName id="4C474D20974B1547FE0AE01EFDF1FEBC" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[441,558,288,309]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="species" species="hopsoni">
|
||
<emphasis id="B933EAB1974B1547FE0AE01EFE16FEBC" box="[441,457,288,309]" italics="true" pageId="4" pageNumber="533">S</emphasis>
|
||
.
|
||
<emphasis id="B933EAB1974B1547FE65E01EFDF1FEBC" box="[470,558,288,309]" italics="true" pageId="4" pageNumber="533">hopsoni</emphasis>
|
||
</taxonomicName>
|
||
features three labial cuspules in the upper postcanines, but showing as autapomorphy the posterior cusp very large, representing more than half the length of the labial crest.
|
||
</paragraph>
|
||
<caption id="DF38662B974D1541FF3DE7D8FC94F8BC" ID-DOI="http://doi.org/10.5281/zenodo.5439221" ID-Zenodo-Dep="5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="2" pageNumber="531" startId="2.[142,220,1766,1785]" targetBox="[198,1363,198,1734]" targetPageId="2">
|
||
<paragraph id="8BF836A3974D1541FF3DE7D8FC94F8BC" blockId="2.[142,1422,1766,1845]" pageId="2" pageNumber="531">
|
||
<emphasis id="B933EAB1974D1541FF3DE7D8FD91F973" bold="true" box="[142,590,1766,1786]" pageId="2" pageNumber="531">
|
||
Figure 1.
|
||
<taxonomicName id="4C474D20974D1541FEB1E7D8FDC6F970" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[258,537,1766,1785]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="2" pageNumber="531" phylum="Chordata" rank="species" species="hopsoni">
|
||
<emphasis id="B933EAB1974D1541FEB1E7D8FDC6F970" bold="true" box="[258,537,1766,1785]" italics="true" pageId="2" pageNumber="531">Santacruzodon hopsoni</emphasis>
|
||
</taxonomicName>
|
||
gen
|
||
</emphasis>
|
||
et
|
||
<emphasis id="B933EAB1974D1541FDC5E7D9FD0CF973" bold="true" box="[630,723,1767,1786]" pageId="2" pageNumber="531">sp. nov.</emphasis>
|
||
Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF38662B974C1540FF28E7D4FB14F892" ID-DOI="http://doi.org/10.5281/zenodo.5439223" ID-Zenodo-Dep="5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="3" pageNumber="532" startId="3.[155,233,1770,1789]" targetBox="[209,1378,201,1737]" targetPageId="3">
|
||
<paragraph id="8BF836A3974C1540FF28E7D4FB14F892" blockId="3.[155,1435,1769,1819]" pageId="3" pageNumber="532">
|
||
<emphasis id="B933EAB1974C1540FF28E7D4FD8CF974" bold="true" box="[155,595,1769,1789]" pageId="3" pageNumber="532">
|
||
Figure 2.
|
||
<taxonomicName id="4C474D20974C1540FEBDE7D7FDFDF975" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[270,546,1769,1788]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="3" pageNumber="532" phylum="Chordata" rank="species" species="hopsoni">
|
||
<emphasis id="B933EAB1974C1540FEBDE7D7FDFDF975" bold="true" box="[270,546,1769,1788]" italics="true" pageId="3" pageNumber="532">Santacruzodon hopsoni</emphasis>
|
||
</taxonomicName>
|
||
gen
|
||
</emphasis>
|
||
et
|
||
<emphasis id="B933EAB1974C1540FDC0E7D4FD14F974" bold="true" box="[627,715,1770,1789]" pageId="3" pageNumber="532">sp. nov.</emphasis>
|
||
(A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BF836A3974B1547FF3DE0E7FD9CFCD7" blockId="4.[142,758,472,1015]" pageId="4" pageNumber="533">
|
||
<emphasis id="B933EAB1974B1547FF3DE0E7FEC8FE67" box="[142,279,473,494]" italics="true" pageId="4" pageNumber="533">Description.</emphasis>
|
||
Most of the material is poorly preserved, providing little information on bone sutures. The skull fragment of the
|
||
<typeStatus id="54FC8801974B1547FEE5E32BFE68FDA2" box="[342,439,533,555]" pageId="4" pageNumber="533" type="holotype">holotype</typeStatus>
|
||
includes the rostrum and orbital region, but lacks the temporal portion (
|
||
<figureCitation id="137C2A26974B1547FF25E36DFF36FDE0" box="[150,233,595,617]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="4" pageNumber="533">Fig. 1A</figureCitation>
|
||
). Measurements of the specimen are presented in
|
||
<tableCitation id="C6C50318974B1547FEB0E34FFE88FD0F" box="[259,343,625,647]" captionStart="Table 1" captionStartId="4.[142,206,1059,1078]" captionText="Table 1. Skull and dentition measurements of Santacruzodon hopsoni gen et sp. nov. (in mm)" pageId="4" pageNumber="533">Table 1</tableCitation>
|
||
. The estimated skull length of this specimen is
|
||
<quantity id="4CBF9B46974B1547FEA9E3AEFEB4FD2C" box="[282,363,656,677]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="4" pageNumber="533" unit="mm" value="80.0">80 mm</quantity>
|
||
. The rostrum is crushed dorsoventrally, without preservation of the dorsal surface, but with remnants of the ascending process of the premaxilla. A distinctive feature of the skull is a rounded, ventrally well-projected suborbital process of the jugal (
|
||
<figureCitation id="137C2A26974B1547FF25E217FF36FCB6" box="[150,233,809,831]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="4" pageNumber="533">Fig. 1A</figureCitation>
|
||
). A platform of the maxilla is present lateral to the postcanine series (
|
||
<figureCitation id="137C2A26974B1547FE1DE276FDD8FCD4" box="[430,519,840,862]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="4" pageNumber="533">Figs 1B</figureCitation>
|
||
,
|
||
<figureCitation id="137C2A26974B1547FDA7E276FDE8FCD7" box="[532,567,840,862]" captionStart="Figure 2" captionStartId="3.[155,233,1770,1789]" captionTargetBox="[209,1378,201,1737]" captionTargetId="figure-68@3.[209,1379,201,1737]" captionTargetPageId="3" captionText="Figure 2. Santacruzodon hopsoni gen et sp. nov. (A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="4" pageNumber="533">2A</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BF836A3974B1547FF14E259FB07FC8B" blockId="4.[142,758,472,1015]" lastBlockId="4.[806,1422,196,1015]" pageId="4" pageNumber="533">
|
||
There are four arrowhead-shaped upper incisors, flattened labio-lingually with 9-11 marginal cuspules (
|
||
<figureCitation id="137C2A26974B1547FF25E29AFED6FC33" box="[150,265,932,954]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="4" pageNumber="533">Fig. 1B, C</figureCitation>
|
||
). The external aspect of the incisor is flat, whereas the internal face is more convex. A diastema is present between incisors and canine. The canine is poorly preserved, but seems to have been small in size. There is no diastema between the canine and postcanines. The postcanines are morphologically heterogeneous and vary from seven to ten in number on the different specimens (
|
||
<figureCitation id="137C2A26974B1547FBA8E001FBB2FEDC" box="[1051,1133,319,341]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="4" pageNumber="533">Fig. 1B</figureCitation>
|
||
). The anterior teeth are mostly triangular in occlusal outline, whereas the posterior ones become more enlarged bucco-lingually (
|
||
<figureCitation id="137C2A26974B1547FC9DE0A5FC58FE39" box="[814,903,411,433]" captionStart="Figure 2" captionStartId="3.[155,233,1770,1789]" captionTargetBox="[209,1378,201,1737]" captionTargetId="figure-68@3.[209,1379,201,1737]" captionTargetPageId="3" captionText="Figure 2. Santacruzodon hopsoni gen et sp. nov. (A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="4" pageNumber="533">Figs 2A</figureCitation>
|
||
,
|
||
<figureCitation id="137C2A26974B1547FC22E0A5FC6BFE38" box="[913,948,411,433]" captionStart="Figure 3" captionStartId="4.[806,884,1677,1696]" captionTargetBox="[914,1314,1075,1645]" captionTargetId="figure-664@4.[914,1316,1072,1645]" captionTargetPageId="4" captionText="Figure 3. Santacruzodon hopsoni gen et sp. nov. (A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top. Abbreviations: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest." figureDoi="http://doi.org/10.5281/zenodo.5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="4" pageNumber="533">3A</figureCitation>
|
||
). These last teeth are proportionally more developed anteroposteriorly than in other traversodontids and present a deep occlusal basin. The labial crest shows three cusps, the large posterior one representing more than half the length of the crest (
|
||
<figureCitation id="137C2A26974B1547FC9DE30AFC5DFDC3" box="[814,898,564,586]" captionStart="Figure 3" captionStartId="4.[806,884,1677,1696]" captionTargetBox="[914,1314,1075,1645]" captionTargetId="figure-664@4.[914,1316,1072,1645]" captionTargetPageId="4" captionText="Figure 3. Santacruzodon hopsoni gen et sp. nov. (A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top. Abbreviations: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest." figureDoi="http://doi.org/10.5281/zenodo.5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="4" pageNumber="533">Fig. 3A</figureCitation>
|
||
). The posterior transverse crest bears three cusps, with the lingual and middle ones positioned very close together and with a basin separating them from the labial cusp (
|
||
<figureCitation id="137C2A26974B1547FBAFE3AEFBAEFD2F" box="[1052,1137,656,678]" captionStart="Figure 3" captionStartId="4.[806,884,1677,1696]" captionTargetBox="[914,1314,1075,1645]" captionTargetId="figure-664@4.[914,1316,1072,1645]" captionTargetPageId="4" captionText="Figure 3. Santacruzodon hopsoni gen et sp. nov. (A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top. Abbreviations: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest." figureDoi="http://doi.org/10.5281/zenodo.5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="4" pageNumber="533">Fig. 3A</figureCitation>
|
||
). In addition, there is an anterior cingular crest less developed in height than the posterior crest, formed by a series of cingular cusps (at least eight or nine;
|
||
<figureCitation id="137C2A26974B1547FBC4E3D2FB14FC8B" box="[1143,1227,748,770]" captionStart="Figure 3" captionStartId="4.[806,884,1677,1696]" captionTargetBox="[914,1314,1075,1645]" captionTargetId="figure-664@4.[914,1316,1072,1645]" captionTargetPageId="4" captionText="Figure 3. Santacruzodon hopsoni gen et sp. nov. (A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top. Abbreviations: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest." figureDoi="http://doi.org/10.5281/zenodo.5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="4" pageNumber="533">Fig. 3A</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BF836A3974B1547FC8CE235FB21FC12" blockId="4.[806,1422,196,1015]" pageId="4" pageNumber="533">
|
||
The lower jaws present a shallow mandibular ramus with a fused symphysis (
|
||
<figureCitation id="137C2A26974B1547FB29E217FAC0FCB7" box="[1178,1311,809,831]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="4" pageNumber="533">Figs 1E, 1F</figureCitation>
|
||
,
|
||
<figureCitation id="137C2A26974B1547FA9FE217FA91FCB6" box="[1324,1358,809,831]" captionStart="Figure 2" captionStartId="3.[155,233,1770,1789]" captionTargetBox="[209,1378,201,1737]" captionTargetId="figure-68@3.[209,1379,201,1737]" captionTargetPageId="3" captionText="Figure 2. Santacruzodon hopsoni gen et sp. nov. (A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="4" pageNumber="533">2C</figureCitation>
|
||
). The masseteric fossa extends anteriorly to the level of postcanine 7 to 9; the last two postcanines are covered laterally by the ascending coronoid process.
|
||
</paragraph>
|
||
<paragraph id="8BF836A3974B1546FC8CE29AFD28FDC0" blockId="4.[806,1422,196,1015]" lastBlockId="5.[155,771,196,586]" lastPageId="5" lastPageNumber="534" pageId="4" pageNumber="533">
|
||
Three procumbent and labio-lingually flattened lower incisors are present, each with 11 marginal cuspules. These teeth are larger than the upper incisors, and spoon-shaped, being convex labially, whereas its lingual face is remarkably concave (
|
||
<figureCitation id="137C2A26974A1546FD83E1DDFD57FF71" box="[560,648,227,249]" captionStart="Figure 1" captionStartId="2.[142,220,1766,1785]" captionTargetBox="[198,1363,198,1734]" captionTargetId="figure-85@2.[198,1365,198,1734]" captionTargetPageId="2" captionText="Figure 1. Santacruzodon hopsoni gen et sp. nov. Holotype (MCN PV 2768). Skull in (A) latero-dorsal, (B) lateroventral views. (C) Close-up showing the upper incisor structure. (D) Drawing of the upper dentition; Lower jaw in (E) dorsal, (F) lateral views. Scale bars: A, B, D, E, F = 10 mm; C = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.5439221" httpUri="https://zenodo.org/record/5439221/files/figure.png" pageId="5" pageNumber="534">Figs 1E</figureCitation>
|
||
,
|
||
<figureCitation id="137C2A26974A1546FD20E1DDFD3FFF70" box="[659,736,227,249]" captionStart="Figure 2" captionStartId="3.[155,233,1770,1789]" captionTargetBox="[209,1378,201,1737]" captionTargetId="figure-68@3.[209,1379,201,1737]" captionTargetPageId="3" captionText="Figure 2. Santacruzodon hopsoni gen et sp. nov. (A) Stereopair of upper postcanine series (MCN PV 2770) in occlusal view; Lower jaw (MCN PV 2752) in (B) dorsal (stereopair) and (C) lateral views. Scale bars = 10 mm." figureDoi="http://doi.org/10.5281/zenodo.5439223" httpUri="https://zenodo.org/record/5439223/files/figure.png" pageId="5" pageNumber="534">2B, 2C</figureCitation>
|
||
). A wide vertical ridge separating two shallow depressions is present on the lingual face of the lower incisors. The canine is relatively small and there is a short diastema between the canine and the first postcanine. There are 9-10/11 lower postcanines, with the anterior transverse crest formed by two cusps: the higher labial cusp lies slightly anterior to the wider lingual cusp (
|
||
<figureCitation id="137C2A26974A1546FF53E0E6FEECFE67" box="[224,307,472,494]" captionStart="Figure 3" captionStartId="4.[806,884,1677,1696]" captionTargetBox="[914,1314,1075,1645]" captionTargetId="figure-664@4.[914,1316,1072,1645]" captionTargetPageId="4" captionText="Figure 3. Santacruzodon hopsoni gen et sp. nov. (A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top. Abbreviations: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest." figureDoi="http://doi.org/10.5281/zenodo.5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="5" pageNumber="534">Fig. 3B</figureCitation>
|
||
). In addition, the postcanines feature a labial crest with 2-3 cusps following the main anterior one (
|
||
<figureCitation id="137C2A26974A1546FF60E32BFEFAFDA2" box="[211,293,533,555]" captionStart="Figure 3" captionStartId="4.[806,884,1677,1696]" captionTargetBox="[914,1314,1075,1645]" captionTargetId="figure-664@4.[914,1316,1072,1645]" captionTargetPageId="4" captionText="Figure 3. Santacruzodon hopsoni gen et sp. nov. (A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top. Abbreviations: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest." figureDoi="http://doi.org/10.5281/zenodo.5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="5" pageNumber="534">Fig. 3B</figureCitation>
|
||
), and a posterior cingular crest being, in some cases, as high as the anterior transverse crest.
|
||
</paragraph>
|
||
<caption id="DF38662B974B1547FF3DE51DFDE0FBDD" pageId="4" pageNumber="533" startId="4.[142,206,1059,1078]">
|
||
<paragraph id="8BF836A3974B1547FF3DE51DFDE0FBDD" blockId="4.[142,757,1059,1108]" pageId="4" pageNumber="533">
|
||
<emphasis id="B933EAB1974B1547FF3DE51DFF37FBBF" bold="true" box="[142,232,1059,1078]" pageId="4" pageNumber="533">Table 1.</emphasis>
|
||
Skull and dentition measurements of
|
||
<emphasis id="B933EAB1974B1547FD33E51DFEB7FBDD" bold="true" pageId="4" pageNumber="533">
|
||
<taxonomicName id="4C474D20974B1547FD33E51DFEEAFBDA" authorityName="Abdala & Ribeiro" authorityYear="2003" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="species" species="hopsoni">
|
||
<emphasis id="B933EAB1974B1547FD33E51DFEEAFBDA" bold="true" italics="true" pageId="4" pageNumber="533">Santacruzodon hopsoni</emphasis>
|
||
</taxonomicName>
|
||
gen
|
||
</emphasis>
|
||
et
|
||
<emphasis id="B933EAB1974B1547FE3FE57FFE3CFBDD" bold="true" box="[396,483,1089,1108]" pageId="4" pageNumber="533">sp. nov.</emphasis>
|
||
(in mm)
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BF836A3974B1547FDB6E545FD1DF8D1" pageId="4" pageNumber="533">
|
||
<table id="F947C403974BEABCFF3DE545FD2AF8D1" box="[142,757,1147,1880]" gridcols="3" gridrows="20" pageId="4" pageNumber="533">
|
||
<tr id="357734E1974BEABCFF3DE545FD2AFB48" box="[142,757,1147,1217]" gridrow="0" pageId="4" pageNumber="533" rowspan-0="1">
|
||
<th id="76A65D9D974BEABCFDB6E545FDADFB48" box="[517,626,1147,1217]" gridcol="1" gridrow="0" pageId="4" pageNumber="533">MCN PV 2768 (Holotype)</th>
|
||
<th id="76A65D9D974BEABCFD25E545FD2AFB48" box="[662,757,1147,1217]" gridcol="2" gridrow="0" pageId="4" pageNumber="533">MCN PV 2752</th>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE5D6FD2AFB75" box="[142,757,1256,1276]" gridrow="1" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE5D6FE01FB75" box="[142,478,1256,1276]" gridcol="0" gridrow="1" pageId="4" pageNumber="533">Rostrum</th>
|
||
<td id="76A65D9D974BEABCFDB6E5D6FDADFB75" box="[517,626,1256,1276]" gridcol="1" gridrow="1" pageId="4" pageNumber="533">49.6</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE438FD2AFA90" box="[142,757,1286,1305]" gridrow="2" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE438FE01FA90" box="[142,478,1286,1305]" gridcol="0" gridrow="2" pageId="4" pageNumber="533">Orbital region</th>
|
||
<td id="76A65D9D974BEABCFDB6E438FDADFA90" box="[517,626,1286,1305]" gridcol="1" gridrow="2" pageId="4" pageNumber="533">24.5</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE41DFD2AFABF" box="[142,757,1315,1334]" gridrow="3" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE41DFE01FABF" box="[142,478,1315,1334]" gridcol="0" gridrow="3" pageId="4" pageNumber="533">Orbital diameter</th>
|
||
<td id="76A65D9D974BEABCFDB6E41DFDADFABF" box="[517,626,1315,1334]" gridcol="1" gridrow="3" pageId="4" pageNumber="533">22.4</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE47EFD2AFADD" box="[142,757,1344,1364]" gridrow="4" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE47EFE01FADD" box="[142,478,1344,1364]" gridcol="0" gridrow="4" pageId="4" pageNumber="533">2nd upper incisor length</th>
|
||
<td id="76A65D9D974BEABCFDB6E47EFDADFADD" box="[517,626,1344,1364]" gridcol="1" gridrow="4" pageId="4" pageNumber="533">4.1</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE460FD2AFAF8" box="[142,757,1374,1393]" gridrow="5" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE460FE01FAF8" box="[142,478,1374,1393]" gridcol="0" gridrow="5" pageId="4" pageNumber="533">4th upper incisor length</th>
|
||
<td id="76A65D9D974BEABCFDB6E460FDADFAF8" box="[517,626,1374,1393]" gridcol="1" gridrow="5" pageId="4" pageNumber="533">3.6</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE445FD2AFA06" box="[142,757,1403,1423]" gridrow="6" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE445FE01FA06" box="[142,478,1403,1423]" gridcol="0" gridrow="6" pageId="4" pageNumber="533">Upper canine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E445FDADFA06" box="[517,626,1403,1423]" gridcol="1" gridrow="6" pageId="4" pageNumber="533">5.3</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE4A6FD2AFA25" box="[142,757,1432,1452]" gridrow="7" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE4A6FE01FA25" box="[142,478,1432,1452]" gridcol="0" gridrow="7" pageId="4" pageNumber="533">Upper postcanine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E4A6FDADFA25" box="[517,626,1432,1452]" gridcol="1" gridrow="7" pageId="4" pageNumber="533">29.2</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE488FD2AFA40" box="[142,757,1462,1481]" gridrow="8" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE488FE01FA40" box="[142,478,1462,1481]" gridcol="0" gridrow="8" pageId="4" pageNumber="533">1st upper postcanine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E488FDADFA40" box="[517,626,1462,1481]" gridcol="1" gridrow="8" pageId="4" pageNumber="533">2.1</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE4EDFD2AFA6E" box="[142,757,1491,1511]" gridrow="9" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE4EDFE01FA6E" box="[142,478,1491,1511]" gridcol="0" gridrow="9" pageId="4" pageNumber="533">1st upper postcanine width</th>
|
||
<td id="76A65D9D974BEABCFDB6E4EDFDADFA6E" box="[517,626,1491,1511]" gridcol="1" gridrow="9" pageId="4" pageNumber="533">2.2</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE4CEFD2AF98D" box="[142,757,1520,1540]" gridrow="10" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE4CEFE01F98D" box="[142,478,1520,1540]" gridcol="0" gridrow="10" pageId="4" pageNumber="533">Last upper postcanine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E4CEFDADF98D" box="[517,626,1520,1540]" gridcol="1" gridrow="10" pageId="4" pageNumber="533">3.9</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE730FD2AF9A8" box="[142,757,1550,1569]" gridrow="11" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE730FE01F9A8" box="[142,478,1550,1569]" gridcol="0" gridrow="11" pageId="4" pageNumber="533">Last upper postcanine width</th>
|
||
<td id="76A65D9D974BEABCFDB6E730FDADF9A8" box="[517,626,1550,1569]" gridcol="1" gridrow="11" pageId="4" pageNumber="533">5.4</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE715FD2AF9F8" box="[142,757,1579,1649]" gridrow="12" pageId="4" pageNumber="533">
|
||
<th id="76A65D9D974BEABCFF3DE715FE01F9F8" box="[142,478,1579,1649]" gridcol="0" gridrow="12" pageId="4" pageNumber="533">Height of the preserved portion of the ascendant ramus of the mandible</th>
|
||
<td id="76A65D9D974BEABCFDB6E715FDADF9F8" box="[517,626,1579,1649]" gridcol="1" gridrow="12" pageId="4" pageNumber="533">28.2</td>
|
||
<td id="76A65D9D974BEABCFD25E715FD2AF9F8" box="[662,757,1579,1649]" gridcol="2" gridrow="12" pageId="4" pageNumber="533">32.1</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE745FD2AF907" box="[142,757,1659,1678]" gridrow="13" pageId="4" pageNumber="533" rowspan-1="1">
|
||
<th id="76A65D9D974BEABCFF3DE745FE01F907" box="[142,478,1659,1678]" gridcol="0" gridrow="13" pageId="4" pageNumber="533">Mandibular length (incomplete)</th>
|
||
<td id="76A65D9D974BEABCFD25E745FD2AF907" box="[662,757,1659,1678]" gridcol="2" gridrow="13" pageId="4" pageNumber="533">69.2</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE7A6FD2AF94C" box="[142,757,1688,1733]" gridrow="14" pageId="4" pageNumber="533">
|
||
<th id="76A65D9D974BEABCFF3DE7A6FE01F94C" box="[142,478,1688,1733]" gridcol="0" gridrow="14" pageId="4" pageNumber="533">Length from the tip of the mandible to the angle</th>
|
||
<td id="76A65D9D974BEABCFDB6E7A6FDADF94C" box="[517,626,1688,1733]" gridcol="1" gridrow="14" pageId="4" pageNumber="533">65.1</td>
|
||
<td id="76A65D9D974BEABCFD25E7A6FD2AF94C" box="[662,757,1688,1733]" gridcol="2" gridrow="14" pageId="4" pageNumber="533">60.3</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE7F1FD2AF96B" box="[142,757,1743,1762]" gridrow="15" pageId="4" pageNumber="533">
|
||
<th id="76A65D9D974BEABCFF3DE7F1FE01F96B" box="[142,478,1743,1762]" gridcol="0" gridrow="15" pageId="4" pageNumber="533">2nd lower incisor length</th>
|
||
<td id="76A65D9D974BEABCFDB6E7F1FDADF96B" box="[517,626,1743,1762]" gridcol="1" gridrow="15" pageId="4" pageNumber="533">4</td>
|
||
<td id="76A65D9D974BEABCFD25E7F1FD2AF96B" box="[662,757,1743,1762]" gridcol="2" gridrow="15" pageId="4" pageNumber="533">2.9</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE7D2FD2AF889" box="[142,757,1772,1792]" gridrow="16" pageId="4" pageNumber="533" rowspan-2="1">
|
||
<th id="76A65D9D974BEABCFF3DE7D2FE01F889" box="[142,478,1772,1792]" gridcol="0" gridrow="16" pageId="4" pageNumber="533">Lower canine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E7D2FDADF889" box="[517,626,1772,1792]" gridcol="1" gridrow="16" pageId="4" pageNumber="533">?4.4</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE634FD2AF894" box="[142,757,1802,1821]" gridrow="17" pageId="4" pageNumber="533">
|
||
<th id="76A65D9D974BEABCFF3DE634FE01F894" box="[142,478,1802,1821]" gridcol="0" gridrow="17" pageId="4" pageNumber="533">Lower postcanine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E634FDADF894" box="[517,626,1802,1821]" gridcol="1" gridrow="17" pageId="4" pageNumber="533">27.6</td>
|
||
<td id="76A65D9D974BEABCFD25E634FD2AF894" box="[662,757,1802,1821]" gridcol="2" gridrow="17" pageId="4" pageNumber="533">25.5</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE619FD2AF8B2" box="[142,757,1831,1851]" gridrow="18" pageId="4" pageNumber="533">
|
||
<th id="76A65D9D974BEABCFF3DE619FE01F8B2" box="[142,478,1831,1851]" gridcol="0" gridrow="18" pageId="4" pageNumber="533">Last lower postcanine length</th>
|
||
<td id="76A65D9D974BEABCFDB6E619FDADF8B2" box="[517,626,1831,1851]" gridcol="1" gridrow="18" pageId="4" pageNumber="533">5.6</td>
|
||
<td id="76A65D9D974BEABCFD25E619FD2AF8B2" box="[662,757,1831,1851]" gridcol="2" gridrow="18" pageId="4" pageNumber="533">5.3</td>
|
||
</tr>
|
||
<tr id="357734E1974BEABCFF3DE67AFD2AF8D1" box="[142,757,1860,1880]" gridrow="19" pageId="4" pageNumber="533">
|
||
<th id="76A65D9D974BEABCFF3DE67AFE01F8D1" box="[142,478,1860,1880]" gridcol="0" gridrow="19" pageId="4" pageNumber="533">Last lower postcanine width</th>
|
||
<td id="76A65D9D974BEABCFDB6E67AFDADF8D1" box="[517,626,1860,1880]" gridcol="1" gridrow="19" pageId="4" pageNumber="533">4.0</td>
|
||
<td id="76A65D9D974BEABCFD25E67AFD2AF8D1" box="[662,757,1860,1880]" gridcol="2" gridrow="19" pageId="4" pageNumber="533">3.8</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<caption id="DF38662B974B1547FC95E7B3FB0AF8E7" ID-DOI="http://doi.org/10.5281/zenodo.5439225" ID-Zenodo-Dep="5439225" httpUri="https://zenodo.org/record/5439225/files/figure.png" pageId="4" pageNumber="533" startId="4.[806,884,1677,1696]" targetBox="[914,1314,1075,1645]" targetPageId="4">
|
||
<paragraph id="8BF836A3974B1547FC95E7B3FB0AF8E7" blockId="4.[806,1422,1677,1902]" pageId="4" pageNumber="533">
|
||
<emphasis id="B933EAB1974B1547FC95E7B3FB3BF928" bold="true" box="[806,1252,1677,1697]" pageId="4" pageNumber="533">
|
||
Figure 3.
|
||
<taxonomicName id="4C474D20974B1547FC29E7B3FB6FF929" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[922,1200,1677,1696]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="4" pageNumber="533" phylum="Chordata" rank="species" species="hopsoni">
|
||
<emphasis id="B933EAB1974B1547FC29E7B3FB6FF929" bold="true" box="[922,1200,1677,1696]" italics="true" pageId="4" pageNumber="533">Santacruzodon hopsoni</emphasis>
|
||
</taxonomicName>
|
||
gen
|
||
</emphasis>
|
||
et
|
||
<emphasis id="B933EAB1974B1547FAB8E7B0FABAF928" bold="true" box="[1291,1381,1678,1697]" pageId="4" pageNumber="533">sp. nov.</emphasis>
|
||
(A) Upper postcanine in occlusal view. Labial, right; anterior top. (B) Lower postcanine in occlusal view. Labial, left; anterior, top.
|
||
<emphasis id="B933EAB1974B1547FC06E7DBFB9AF971" box="[949,1093,1765,1784]" italics="true" pageId="4" pageNumber="533">Abbreviations</emphasis>
|
||
: aalc, anterior accessory labial cusps; ac, anterior cingular crest; cc, central cusp; lac, labial cusp; lic, lingual cusp; mlc, main labial cusp; palc, posterior accessory labial cusps; palic, posterior accessory lingual cusp; pc, posterior cingular crest.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BF836A3974A1546FF28E35CFD2EFA78" blockId="5.[155,771,610,1521]" pageId="5" pageNumber="534">
|
||
<emphasis id="B933EAB1974A1546FF28E35CFD94FDFE" box="[155,587,610,631]" italics="true" pageId="5" pageNumber="534">
|
||
Comparison.
|
||
<taxonomicName id="4C474D20974A1546FE8BE35CFD94FDFE" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[312,587,610,631]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="species" species="hopsoni">Santacruzodon hopsoni</taxonomicName>
|
||
</emphasis>
|
||
resembles the Madagascan traversodontid
|
||
<taxonomicName id="4C474D20974A1546FE43E3BFFEC1FD3C" authority="(Flynn et al., 2000)" baseAuthorityName="Flynn" baseAuthorityYear="2000" class="Reptilia" family="Traversodontidae" genus="Dadadon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="species" species="isaloi">
|
||
<emphasis id="B933EAB1974A1546FE43E3BFFD78FD1F" box="[496,679,641,662]" italics="true" pageId="5" pageNumber="534">Dadadon isaloi</emphasis>
|
||
(
|
||
<bibRefCitation id="EFD64B52974A1546FD0DE3BFFEC8FD3C" author="Flynn JJ & Parrish JM & Rakotosamimanana B & Ranivoharimanana L & Simpson WF & Wyss AR" pageId="5" pageNumber="534" pagination="422 - 427" refId="ref8621" refString="Flynn JJ, Parrish JM, Rakotosamimanana B, Ranivoharimanana L, Simpson WF, Wyss AR. 2000. New traversodontids (Synapsida: Eucynodontia) from the Triassic of Madagascar. Journal of Vertebrate Paleontology 20: 422 - 427." type="journal article" year="2000">
|
||
Flynn
|
||
<emphasis id="B933EAB1974A1546FF28E39EFF06FD3D" box="[155,217,671,693]" italics="true" pageId="5" pageNumber="534">et al.,</emphasis>
|
||
2000
|
||
</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
in the rounded suborbital process, and the differentiation between the triangular occlusal outline of the anterior and the more rectangular posterior upper postcanines (a feature also recorded in
|
||
<taxonomicName id="4C474D20974A1546FD14E3C5FEEAFCA6" class="Reptilia" family="Traversodontidae" genus="Gomphodontosuchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FD14E3C5FEEAFCA6" italics="true" pageId="5" pageNumber="534">Gomphodontosuchus</emphasis>
|
||
</taxonomicName>
|
||
;
|
||
<bibRefCitation id="EFD64B52974A1546FEF0E224FE3EFCB9" author="Hopson JA" box="[323,481,794,816]" pageId="5" pageNumber="534" pagination="285 - 299" refId="ref9183" refString="Hopson JA. 1985. Morphology and relationships of Gomphodontosuchus brasiliensis von Huene (Synapsida, Cynodontia, Tritylodontoidea) from the Triassic of Brazil. Neues Jahrbuch fur Geologie und Palaontologie, Monatshefte 1985: 285 - 299." type="journal article" year="1985">Hopson, 1985</bibRefCitation>
|
||
: fig. 3). The high number of postcanines, the overall structure of the upper posterior postcanines, including a slightly developed shouldering are also seen in
|
||
<taxonomicName id="4C474D20974A1546FE58E248FD8BFC02" box="[491,596,886,907]" class="Reptilia" family="Traversodontidae" genus="Dadadon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE58E248FD8BFC02" box="[491,596,886,907]" italics="true" pageId="5" pageNumber="534">Dadadon</emphasis>
|
||
</taxonomicName>
|
||
and the South American Ladinian
|
||
<taxonomicName id="4C474D20974A1546FE3BE2ABFD9FFC23" box="[392,576,917,938]" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE3BE2ABFD9FFC23" box="[392,576,917,938]" italics="true" pageId="5" pageNumber="534">Massetognathus</emphasis>
|
||
</taxonomicName>
|
||
. Other similarities (i.e. the presence of three cusps in the posterior transverse crest of the upper postcanines, and the close spacing of the central and the lingual cusps) shared by
|
||
<taxonomicName id="4C474D20974A1546FEA7E531FE1FFBAD" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[276,448,1039,1060]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FEA7E531FE1FFBAD" box="[276,448,1039,1060]" italics="true" pageId="5" pageNumber="534">Santacruzodon</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C474D20974A1546FE7CE531FDE7FBAD" box="[463,568,1039,1060]" class="Reptilia" family="Traversodontidae" genus="Dadadon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE7CE531FDE7FBAD" box="[463,568,1039,1060]" italics="true" pageId="5" pageNumber="534">Dadadon</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<emphasis id="B933EAB1974A1546FDC7E52EFF61FBCD" italics="true" pageId="5" pageNumber="534">Massetognatus</emphasis>
|
||
are plesiomorphies, also occurring in more basal traversodontids (see Phylogenetic analysis below). A synapomorphy shared by
|
||
<taxonomicName id="4C474D20974A1546FE6FE555FD57FB09" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[476,648,1131,1152]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE6FE555FD57FB09" box="[476,648,1131,1152]" italics="true" pageId="5" pageNumber="534">Santacruzodon</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C474D20974A1546FD2CE552FF28FB16" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FD2CE552FF28FB16" italics="true" pageId="5" pageNumber="534">Massetognathus</emphasis>
|
||
</taxonomicName>
|
||
and other late traversodontids is the presence of three cusps in the sectorial labial border of the upper postcanines (
|
||
<taxonomicName id="4C474D20974A1546FE2CE5F9FDD7FB55" box="[415,520,1223,1244]" class="Reptilia" family="Traversodontidae" genus="Dadadon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE2CE5F9FDD7FB55" box="[415,520,1223,1244]" italics="true" pageId="5" pageNumber="534">Dadadon</emphasis>
|
||
</taxonomicName>
|
||
shows two cusps instead). As in many late traversodontids (i.e.
|
||
<taxonomicName id="4C474D20974A1546FD0FE5D8FF1AFA93" class="Reptilia" family="Traversodontidae" genus="Dadadon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FD0FE5D8FF1AFA93" italics="true" pageId="5" pageNumber="534">Dadadon</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C474D20974A1546FEB6E43BFE62FA93" box="[261,445,1285,1306]" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FEB6E43BFE62FA93" box="[261,445,1285,1306]" italics="true" pageId="5" pageNumber="534">Massetognathus</emphasis>
|
||
</taxonomicName>
|
||
),
|
||
<taxonomicName id="4C474D20974A1546FE65E43BFD5DFA93" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[470,642,1285,1306]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE65E43BFD5DFA93" box="[470,642,1285,1306]" italics="true" pageId="5" pageNumber="534">Santacruzodon</emphasis>
|
||
</taxonomicName>
|
||
features a remarkably enlarged postero-external upper cusp. The incisors of
|
||
<taxonomicName id="4C474D20974A1546FE85E47CFE3DFADE" authorityName="Abdala & Ribeiro" authorityYear="2003" box="[310,482,1346,1367]" class="Reptilia" family="Traversodontidae" genus="Santacruzodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FE85E47CFE3DFADE" box="[310,482,1346,1367]" italics="true" pageId="5" pageNumber="534">Santacruzodon</emphasis>
|
||
</taxonomicName>
|
||
, are flattened buccolingually, as in
|
||
<taxonomicName id="4C474D20974A1546FEE8E45FFDCCFAFF" box="[347,531,1377,1398]" class="Reptilia" family="Traversodontidae" genus="Massetognathus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="genus">
|
||
<emphasis id="B933EAB1974A1546FEE8E45FFDCCFAFF" box="[347,531,1377,1398]" italics="true" pageId="5" pageNumber="534">Massetognathus</emphasis>
|
||
</taxonomicName>
|
||
, but overall incisor morphology more closely matches that of
|
||
<taxonomicName id="4C474D20974A1546FDC8E4BEFE5DFA3A" baseAuthorityName="Hopson" baseAuthorityYear="1984" class="Reptilia" family="Traversodontidae" genus="Arctotraversodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="species" species="plemmyridon">
|
||
<emphasis id="B933EAB1974A1546FDC8E4BEFE5DFA3A" italics="true" pageId="5" pageNumber="534">Arctotraversodon plemmyridon</emphasis>
|
||
</taxonomicName>
|
||
of
|
||
<collectingRegion id="4983F841974A1546FE05E4A0FD96FA3D" box="[438,585,1438,1460]" country="Canada" name="Nova Scotia" pageId="5" pageNumber="534">Nova Scotia</collectingRegion>
|
||
,
|
||
<collectingCountry id="F3507633974A1546FDEFE4A0FD6BFA3D" box="[604,692,1438,1460]" name="Canada" pageId="5" pageNumber="534">Canada</collectingCountry>
|
||
(
|
||
<bibRefCitation id="EFD64B52974A1546FD78E4A0FEC6FA5B" author="Sues H-D & Hopson JA & Shubin NH" pageId="5" pageNumber="534" pagination="168 - 171" refId="ref9982" refString="Sues H-D, Hopson JA, Shubin NH. 1992. Affinities of? Scalenodontoides plemmyridon Hopson, 1984 (Synapsida: Cynodontia) from the Upper Triassic of Nova Scotia. Journal of Vertebrate Paleontology 12: 168 - 171." type="journal article" year="1992">
|
||
Sues
|
||
<emphasis id="B933EAB1974A1546FF28E483FF0CFA5B" box="[155,211,1469,1490]" italics="true" pageId="5" pageNumber="534">et al.</emphasis>
|
||
, 1992
|
||
</bibRefCitation>
|
||
; =?
|
||
<taxonomicName id="4C474D20974A1546FEF0E483FD79FA5B" baseAuthorityName="Hopson" baseAuthorityYear="1984" box="[323,678,1469,1490]" class="Reptilia" family="Traversodontidae" genus="Scalenodontoides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Therapsida" pageId="5" pageNumber="534" phylum="Chordata" rank="species" species="plemmyridon">
|
||
<emphasis id="B933EAB1974A1546FEF0E483FD79FA5B" box="[323,678,1469,1490]" italics="true" pageId="5" pageNumber="534">Scalenodontoides plemmyridon</emphasis>
|
||
</taxonomicName>
|
||
of
|
||
<bibRefCitation id="EFD64B52974A1546FD78E483FED6FA78" author="Hopson JA" pageId="5" pageNumber="534" pagination="181 - 201" refId="ref9159" refString="Hopson JA. 1984. Late Triassic traversodont cynodonts from Nova Scotia and southern Africa. Palaeontologia Africana 25: 181 - 201." type="journal article" year="1984">Hopson, 1984</bibRefCitation>
|
||
), also showing cuspules along their edges.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |