184 lines
29 KiB
XML
184 lines
29 KiB
XML
<document id="EB8BF0A31657294BD75E019C2F7F3E33" ID-CLB-Dataset="9089" ID-DOI="10.11646/zootaxa.4861.1.10" ID-GBIF-Dataset="8ce4aff4-106f-4fa8-934d-3c300713b7ba" ID-ISSN="1175-5326" ID-Zenodo-Dep="4414475" ID-ZooBank="DA9B3880-5E5C-4D27-A4F6-4A37860CBE18" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1609707509354" checkinUser="plazi" docAuthor="Gale, Andrew S." docDate="2020" docId="03CC0A295A41AA596BB6DDECFA251B91" docLanguage="en" docName="zootaxa.4861.1.10.pdf" docOrigin="Zootaxa 4861 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Eoastropecten Gale 2020, gen. nov." docType="treatment" docVersion="6" lastPageNumber="141" masterDocId="FFF572515A40AA5A6B21DC4DFFAE1B68" masterDocTitle="A new comb-star (Asteroidea, Astropectinidae) from the Upper Triassic (Carnian) of China" masterLastPageNumber="144" masterPageNumber="139" pageNumber="140" updateTime="1698852074895" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:titleInfo id="4D0681760B39CE154CAE6D246F20BAD2">
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<mods:title id="191D43BB3EA786DAF3EA37390FB843F3">A new comb-star (Asteroidea, Astropectinidae) from the Upper Triassic (Carnian) of China</mods:title>
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<mods:name id="0204CAF5BAAB57BEB8EC285CAA08886F" type="personal">
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<mods:namePart id="B76A342A9930B141ADB7374B403EFB0C">Gale, Andrew S.</mods:namePart>
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<mods:affiliation id="324083CE3FF37C14FF7186BA077D041D">School of the Environment, Geography and Geological Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Ports- & Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW 75 BD U. K. https: // orcid. org 0000 - 0002 - 2075 - 3689</mods:affiliation>
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<mods:typeOfResource id="0517AE70EBC08B8EFBB991425056BEE8">text</mods:typeOfResource>
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<mods:title id="E01AD766EC4E55E4F9939BA4C31F91AF">Zootaxa</mods:title>
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<mods:part id="0771726D66830DC26210001CBBF11C57">
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<mods:date id="BD66CCE7EF564429744CBAC832DB28A4">2020</mods:date>
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<mods:number id="E1EC5AD0670C8EA13DE4F90B72D87D49">2020-10-15</mods:number>
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<mods:number id="2B8194049063E8318FC6A09D8996EC7F">4861</mods:number>
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<mods:identifier id="08AE053A533399468CA58D09245E76C0" type="DOI">10.11646/zootaxa.4861.1.10</mods:identifier>
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<treatment id="03CC0A295A41AA596BB6DDECFA251B91" ID-DOI="http://doi.org/10.5281/zenodo.4414431" ID-GBIF-Taxon="176420751" ID-Zenodo-Dep="4414431" LSID="urn:lsid:plazi:treatment:03CC0A295A41AA596BB6DDECFA251B91" httpUri="http://treatment.plazi.org/id/03CC0A295A41AA596BB6DDECFA251B91" lastPageId="3" lastPageNumber="141" pageId="1" pageNumber="140">
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<subSubSection id="C37FE8B45A41AA5B6BB6DDECFDF41AD4" box="[151,602,417,444]" pageId="1" pageNumber="140" type="nomenclature">
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<paragraph id="8BDABB3F5A41AA5B6BB6DDECFDF41AD4" blockId="1.[151,602,417,444]" box="[151,602,417,444]" pageId="1" pageNumber="140">
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<heading id="D0920C535A41AA5B6BB6DDECFDF41AD4" bold="true" box="[151,602,417,444]" fontSize="11" level="1" pageId="1" pageNumber="140" reason="1">
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<emphasis id="B911672D5A41AA5B6BB6DDECFDF41AD4" bold="true" box="[151,602,417,444]" pageId="1" pageNumber="140">
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Genus
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<taxonomicName id="4C65C0BC5A41AA5B6BCFDDEFFE701AD3" authority="Gale" authorityName="Gale" authorityYear="2020" box="[238,478,417,444]" class="Asteroidea" family="Astropectinidae" genus="Eoastropecten" kingdom="Animalia" order="Paxillosida" pageId="1" pageNumber="140" phylum="Echinodermata" rank="genus" status="gen. nov.">
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<emphasis id="B911672D5A41AA5B6BCFDDEFFE351AD4" bold="true" box="[238,411,418,444]" italics="true" pageId="1" pageNumber="140">Eoastropecten</emphasis>
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Gale
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</taxonomicName>
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,
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<taxonomicNameLabel id="A222DA565A41AA5B6ACDDDEFFDF41AD4" box="[492,602,418,444]" pageId="1" pageNumber="140" rank="genus">gen. 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="C37FE8B45A41AA5B6BB6DDA9FB24192E" pageId="1" pageNumber="140" type="diagnosis">
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<paragraph id="8BDABB3F5A41AA5B6BB6DDA9FB24192E" blockId="1.[151,1436,484,726]" pageId="1" pageNumber="140">
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<emphasis id="B911672D5A41AA5B6BB6DDA9FEBC1A96" bold="true" box="[151,274,484,510]" pageId="1" pageNumber="140">Diagnosis.</emphasis>
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Astropectinid in which the superomarginals carry a sculpture of evenly-spaced, non-aligned fine rugosities on the raised central portion of the external surface. Inferomarginals embayed for articulation with actinal ossicles, externally with fine spine bases set in irregular rows, oblique to breadth of ossicles.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37FE8B45A41AA5B6BE6DE1CFDD41903" box="[199,634,592,619]" pageId="1" pageNumber="140" type="type_taxon">
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<paragraph id="8BDABB3F5A41AA5B6BE6DE1CFDD41903" blockId="1.[151,1436,484,726]" box="[199,634,592,619]" pageId="1" pageNumber="140">
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<emphasis id="B911672D5A41AA5B6BE6DE1CFECC1902" bold="true" box="[199,354,592,619]" pageId="1" pageNumber="140">
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<typeStatus id="54DE059D5A41AA5B6BE6DE1CFEAC1903" box="[199,258,593,619]" pageId="1" pageNumber="140">Type</typeStatus>
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species.
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</emphasis>
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<taxonomicName id="4C65C0BC5A41AA5B6A48DE1CFDB21902" authority="Gale, 2020" authorityName="Gale" authorityYear="2020" box="[361,540,592,618]" class="Asteroidea" family="Astropectinidae" genus="Eoastropecten" kingdom="Animalia" order="Paxillosida" pageId="1" pageNumber="140" phylum="Echinodermata" rank="species" species="sechuanensis" status="sp. nov.">
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<emphasis id="B911672D5A41AA5B6A48DE1CFDB21902" box="[361,540,592,618]" italics="true" pageId="1" pageNumber="140">E. sechuanensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A222DA565A41AA5B6902DE1CFDD41903" box="[547,634,593,619]" pageId="1" pageNumber="140" rank="species">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="C37FE8B45A41AA5B6BE6DE38FE0719BE" pageId="1" pageNumber="140" type="etymology">
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<paragraph id="8BDABB3F5A41AA5B6BE6DE38FC2B19DB" blockId="1.[151,1436,484,726]" pageId="1" pageNumber="140">
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<emphasis id="B911672D5A41AA5B6BE6DE38FEE019E7" bold="true" box="[199,334,629,655]" pageId="1" pageNumber="140">Etymology.</emphasis>
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Formed from Ancient Greek ἠώς ľ(çṓs), “dawn”ľ and the genus name
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<taxonomicName id="4C65C0BC5A41AA5B6F45DE38FB4719E7" box="[1124,1257,629,655]" class="Asteroidea" family="Astropectinidae" genus="Astropecten" kingdom="Animalia" order="Paxillosida" pageId="1" pageNumber="140" phylum="Echinodermata" rank="genus">
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<emphasis id="B911672D5A41AA5B6F45DE38FB4719E7" box="[1124,1257,629,655]" italics="true" pageId="1" pageNumber="140">Astropecten</emphasis>
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</taxonomicName>
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, in reference to the new genus being the earlies known representative of the group.
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</paragraph>
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<paragraph id="8BDABB3F5A41AA5B6BE6DEF1FE0719BE" blockId="1.[151,1436,484,726]" box="[199,425,700,726]" pageId="1" pageNumber="140">
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<emphasis id="B911672D5A41AA5B6BE6DEF1FE8819BE" bold="true" box="[199,294,700,726]" pageId="1" pageNumber="140">Gender.</emphasis>
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Masculine.
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</paragraph>
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</subSubSection>
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<caption id="DF1AEBB75A41AA5B6BB6DB4BFE631C9E" ID-DOI="http://doi.org/10.5281/zenodo.4414477" ID-Zenodo-Dep="4414477" httpUri="https://zenodo.org/record/4414477/files/figure.png" pageId="1" pageNumber="140" startId="1.[151,250,1798,1822]" targetBox="[315,1271,748,1772]" targetPageId="1">
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<paragraph id="8BDABB3F5A41AA5B6BB6DB4BFE631C9E" blockId="1.[151,1437,1798,2038]" pageId="1" pageNumber="140">
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<emphasis id="B911672D5A41AA5B6BB6DB4BFEB91C76" bold="true" box="[151,279,1798,1822]" pageId="1" pageNumber="140">FIGURE 1.</emphasis>
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Astropectinid morphology. A, B,
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<taxonomicName id="4C65C0BC5A41AA5B69A3DB4BFBA31C76" authority="(Blake & Reid, 1998)" baseAuthorityName="Blake & Reid" baseAuthorityYear="1998" box="[642,1037,1798,1822]" class="Asteroidea" family="Astropectinidae" genus="Coulonia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Paxillosida" pageId="1" pageNumber="140" phylum="Echinodermata" rank="species" species="reidi">
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<emphasis id="B911672D5A41AA5B69A3DB4BFCB41C76" box="[642,794,1798,1822]" italics="true" pageId="1" pageNumber="140">Coulonia reidi</emphasis>
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(
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<bibRefCitation id="EFF4C6CE5A41AA5B680ADB4BFBAB1C76" author="Blake, D. B. & Reid, R. III." box="[811,1029,1798,1822]" pageId="1" pageNumber="140" pagination="512 - 532" refId="ref2296" refString="Blake, D. B. & Reid, R. III. (1998) Some Albian (Cretaceous) asteroids (Echinodermata) from Texas and their paleobiological implications. Journal of Paleontology, 72, 512 - 532. https: // doi. org / 10.1017 / S 002233600002429 X" type="journal article" year="1998">Blake & Reid, 1998</bibRefCitation>
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)
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</taxonomicName>
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, interradial fragment NHMUK PI EE 17699). A, abactinal surface, to show paxillae and superomarginals with intervening intermarginal fascioles. B, actinal surface, to show inferomarginal ossicles and imbricating actinal plates, in rows separated by grooves representing extensions of the intermarginal fascioles towards the ambulacral groove. C,
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<taxonomicName id="4C65C0BC5A41AA5B69F9DB3FFCEF1CE2" authorityName="Sladen" authorityYear="1889" box="[728,833,1906,1930]" class="Asteroidea" family="Astropectinidae" genus="Tethyaster" kingdom="Animalia" order="Paxillosida" pageId="1" pageNumber="140" phylum="Echinodermata" rank="genus">
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<emphasis id="B911672D5A41AA5B69F9DB3FFCEF1CE2" box="[728,833,1906,1930]" italics="true" pageId="1" pageNumber="140">Tethyaster</emphasis>
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</taxonomicName>
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sp. actinal surface, denuded of spines and smaller ossicles. Note the deep intermarginal fascioles, and the grooves extending across the actinal surface to the ambulacral groove. A.S.
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<taxonomicName id="4C65C0BC5A41AA5B6E4DDBDBFA321CC6" authority="Gale, 2020" authorityName="Gale" authorityYear="2020" box="[1388,1436,1942,1966]" class="Magnoliopsida" family="Myricaceae" genus="Gale" kingdom="Plantae" order="Fagales" pageId="1" pageNumber="140" phylum="Tracheophyta" rank="genus" status="gen. nov.">Gale</taxonomicName>
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Collection. A, B, Grayson Formation,
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<taxonomicName id="4C65C0BC5A41AA5B6901DBF6FABE1CBA" authority="Zone, Cenomanian, Dottie Lynn Lane, Fort Worth" authorityName="Zone, Cenomanian, Dottie Lynn Lane, Fort Worth" box="[544,1296,1978,2003]" class="Cephalopoda" family="Acanthoceratidae" genus="Graysonites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="1" pageNumber="140" phylum="Mollusca" rank="species" species="wacoense">
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<emphasis id="B911672D5A41AA5B6901DBF6FCAA1CBA" box="[544,772,1979,2002]" italics="true" pageId="1" pageNumber="140">Graysonites wacoense</emphasis>
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Zone, Cenomanian, Dottie Lynn Lane, Fort Worth
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</taxonomicName>
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, Texas, USA. C, present day, North Atlantic.
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</paragraph>
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</caption>
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<caption id="DF1AEBB75A42AA586BB6D923FBED1DEA" ID-DOI="http://doi.org/10.5281/zenodo.4414479" ID-Zenodo-Dep="4414479" httpUri="https://zenodo.org/record/4414479/files/figure.png" pageId="2" pageNumber="141" startId="2.[151,250,1390,1414]" targetBox="[151,1437,181,1366]" targetPageId="2">
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<paragraph id="8BDABB3F5A42AA586BB6D923FBED1DEA" blockId="2.[151,1437,1390,1666]" pageId="2" pageNumber="141">
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<emphasis id="B911672D5A42AA586BB6D923FEF81EEE" bold="true" box="[151,342,1390,1414]" pageId="2" pageNumber="141">FIGURE 2. A–H,</emphasis>
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<taxonomicName id="4C65C0BC5A42AA586A7FD922FDD11EEE" authority="Gale, 2020" authorityName="Gale" authorityYear="2020" box="[350,639,1390,1414]" class="Asteroidea" family="Astropectinidae" genus="Eoastropecten" kingdom="Animalia" order="Paxillosida" pageId="2" pageNumber="141" phylum="Echinodermata" rank="species" species="sechuanensis" status="gen. et sp. nov.">
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<emphasis id="B911672D5A42AA586A7FD922FDD11EEE" box="[350,639,1390,1414]" italics="true" pageId="2" pageNumber="141">Eoastropecten sechuanensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A222DA565A42AA5869A6D923FC871EED" box="[647,809,1390,1414]" pageId="2" pageNumber="141" rank="species">gen. et sp. nov.</taxonomicNameLabel>
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, marginal ossicles. A, E, holotype superomarginal in abactinal (A) and proximal (E) view (MHI2183/1). B, paratype superomarginal in proximal/distal view (MHI2183/6). C, D, paratype inferomarginal in actinal (C) and distal (D) views (MHI2183/3). B, paratype superomarginal in proximal/distal views (MHI2183/2). F–H, paratype superomarginals in abactinal view (MHI2183/4, /5). I, unidentified astropectind superomarginal in abactinal view (NHMUK EE 17700). J, astropectinid superomarginal in abactinal view (NHMUK PI EE 17701). K, L, marginals of living astropectinid
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<taxonomicName id="4C65C0BC5A42AA586AC8DA6FFC481D52" authority="(Muller & Troschel, 1840)" baseAuthorityName="Muller & Troschel" baseAuthorityYear="1840" box="[489,998,1570,1594]" class="Asteroidea" family="Astropectinidae" genus="Craspidaster" kingdom="Animalia" order="Paxillosida" pageId="2" pageNumber="141" phylum="Echinodermata" rank="species" species="hesperus">
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<emphasis id="B911672D5A42AA586AC8DA6FFD611D52" box="[489,719,1570,1594]" italics="true" pageId="2" pageNumber="141">Craspidaster hesperus</emphasis>
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(Müller & Troschel, 1840)
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</taxonomicName>
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, J, superomarginal in abactinal view. K, L, supero-inferomarginal pair. A–H, Maantang Formation (Carnian, Triassic), sample C30, Jiancougou, Sechuan Province, China. I, Lower Oxfordian, Andelot-Morval, Départment du Jura, France. J–L, Recent, Hong Kong.
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</paragraph>
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</caption>
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<subSubSection id="C37FE8B45A42AA596BE6DAFDFA251B91" lastPageId="3" lastPageNumber="142" pageId="2" pageNumber="141" type="discussion">
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<paragraph id="8BDABB3F5A42AA596BE6DAFDFA251B91" blockId="2.[151,1437,1712,2027]" lastBlockId="3.[151,1436,151,249]" lastPageId="3" lastPageNumber="142" pageId="2" pageNumber="141">
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<emphasis id="B911672D5A42AA586BE6DAFDFE951DA2" bold="true" box="[199,315,1712,1738]" pageId="2" pageNumber="141">Remarks.</emphasis>
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Most Jurassic to present day astropectinids have a consistent sculpture and spination of the supero- and inferomarginals; superomarginals bear rounded shallow pits which carry short, granular spines (
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<figureCitation id="135EA7BA5A42AA586E26DA99FAC81D86" box="[1287,1382,1748,1774]" captionStart="FIGURE 1" captionStartId="1.[151,250,1798,1822]" captionTargetBox="[315,1271,748,1772]" captionTargetId="figure-118@1.[315,1271,748,1772]" captionTargetPageId="1" captionText="FIGURE 1. Astropectinid morphology. A, B, Coulonia reidi (Blake & Reid, 1998), interradial fragment NHMUK PI EE 17699). A, abactinal surface, to show paxillae and superomarginals with intervening intermarginal fascioles. B, actinal surface, to show inferomarginal ossicles and imbricating actinal plates, in rows separated by grooves representing extensions of the intermarginal fascioles towards the ambulacral groove. C, Tethyaster sp. actinal surface, denuded of spines and smaller ossicles. Note the deep intermarginal fascioles, and the grooves extending across the actinal surface to the ambulacral groove. A.S. Gale Collection. A, B, Grayson Formation, Graysonites wacoense Zone, Cenomanian, Dottie Lynn Lane, Fort Worth, Texas, USA. C, present day, North Atlantic." figureDoi="http://doi.org/10.5281/zenodo.4414477" httpUri="https://zenodo.org/record/4414477/files/figure.png" pageId="2" pageNumber="141">Figs 1A</figureCitation>
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,
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<figureCitation id="135EA7BA5A42AA586E52DA99FA201D86" box="[1395,1422,1748,1774]" captionStart="FIGURE 2" captionStartId="2.[151,250,1390,1414]" captionTargetBox="[151,1437,181,1366]" captionTargetId="figure-24@2.[151,1437,181,1366]" captionTargetPageId="2" captionText="FIGURE 2. A–H, Eoastropecten sechuanensis gen. et sp. nov., marginal ossicles. A, E, holotype superomarginal in abactinal (A) and proximal (E) view (MHI2183/1). B, paratype superomarginal in proximal/distal view (MHI2183/6). C, D, paratype inferomarginal in actinal (C) and distal (D) views (MHI2183/3). B, paratype superomarginal in proximal/distal views (MHI2183/2). F–H, paratype superomarginals in abactinal view (MHI2183/4, /5). I, unidentified astropectind superomarginal in abactinal view (NHMUK EE 17700). J, astropectinid superomarginal in abactinal view (NHMUK PI EE 17701). K, L, marginals of living astropectinid Craspidaster hesperus (Müller & Troschel, 1840), J, superomarginal in abactinal view. K, L, supero-inferomarginal pair.A–H, Maantang Formation (Carnian, Triassic), sample C30, Jiancougou, Sechuan Province, China. I, Lower Oxfordian, Andelot-Morval, Départment du Jura, France. J–L, Recent, Hong Kong." figureDoi="http://doi.org/10.5281/zenodo.4414479" httpUri="https://zenodo.org/record/4414479/files/figure.png" pageId="2" pageNumber="141">2J</figureCitation>
|
||
), and inferomarginals have an oblique to transverse row of large, horseshoe-shaped or round (
|
||
<figureCitation id="135EA7BA5A42AA586FBDDAB5FB5F1C7A" box="[1180,1265,1784,1810]" captionStart="FIGURE 1" captionStartId="1.[151,250,1798,1822]" captionTargetBox="[315,1271,748,1772]" captionTargetId="figure-118@1.[315,1271,748,1772]" captionTargetPageId="1" captionText="FIGURE 1. Astropectinid morphology. A, B, Coulonia reidi (Blake & Reid, 1998), interradial fragment NHMUK PI EE 17699). A, abactinal surface, to show paxillae and superomarginals with intervening intermarginal fascioles. B, actinal surface, to show inferomarginal ossicles and imbricating actinal plates, in rows separated by grooves representing extensions of the intermarginal fascioles towards the ambulacral groove. C, Tethyaster sp. actinal surface, denuded of spines and smaller ossicles. Note the deep intermarginal fascioles, and the grooves extending across the actinal surface to the ambulacral groove. A.S. Gale Collection. A, B, Grayson Formation, Graysonites wacoense Zone, Cenomanian, Dottie Lynn Lane, Fort Worth, Texas, USA. C, present day, North Atlantic." figureDoi="http://doi.org/10.5281/zenodo.4414477" httpUri="https://zenodo.org/record/4414477/files/figure.png" pageId="2" pageNumber="141">Fig. 1B</figureCitation>
|
||
) spine bases to which dagger-like spines are attached (e.g.,
|
||
<bibRefCitation id="EFF4C6CE5A42AA5869A4DB50FD501C5F" author="Hess, H." box="[645,766,1820,1847]" pageId="2" pageNumber="141" pagination="1 - 113" refId="ref2689" refString="Hess, H. (1955) Die fossilen Astropectiniden (Asteroidea). Schweizerische Palaontologische Abhandlungen, 71, 1 - 113, pls. 1 - 4." type="journal article" year="1955">Hess 1955</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFF4C6CE5A42AA58682BDB50FCD51C5E" author="Jagt J. W. M." box="[778,891,1820,1847]" pageId="2" pageNumber="141" pagination="377 - 503" refId="ref2719" refString="Jagt J. W. M. (2000) Late Cretaceous-Early Palaeogene echinoderms and the K / T boundary in the southeast Netherlands and northeast Belgium-Part 5: Asteroids. Scripta Geologica, 121, 377 - 503." type="journal article" year="2000">Jagt 2000</bibRefCitation>
|
||
;
|
||
<taxonomicName id="4C65C0BC5A42AA5868A7DB51FC501C5E" authority="Gale, 2020" authorityName="Gale" authorityYear="2020" box="[902,1022,1820,1846]" class="Magnoliopsida" family="Myricaceae" genus="Gale" kingdom="Plantae" order="Fagales" pageId="2" pageNumber="140" phylum="Tracheophyta" rank="genus" status="gen. nov.">
|
||
<bibRefCitation id="EFF4C6CE5A42AA5868A7DB51FC501C5E" author="Gale, A. S." box="[902,1022,1820,1846]" pageId="2" pageNumber="141" pagination="1 - 112" refId="ref2520" refString="Gale, A. S. (2011) Phylogeny of the Neoasteroidea (post-Palaeozoic Asteroidea, Echinodermata). Special Papers in Palaeontology, 85, 1 - 112." type="journal article" year="2011">Gale 2011</bibRefCitation>
|
||
</taxonomicName>
|
||
). In contrast,
|
||
<taxonomicName id="4C65C0BC5A42AA586FB6DB50FAE41C5E" authority="Gale, 2020" authorityName="Gale" authorityYear="2020" box="[1175,1354,1820,1846]" class="Asteroidea" family="Astropectinidae" genus="Eoastropecten" kingdom="Animalia" order="Paxillosida" pageId="2" pageNumber="141" phylum="Echinodermata" rank="species" species="sechuanensis" status="gen. et sp. nov.">
|
||
<emphasis id="B911672D5A42AA586FB6DB50FAE41C5E" box="[1175,1354,1820,1846]" italics="true" pageId="2" pageNumber="141">E. sechuanensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A222DA565A42AA586E70DB50FF431C33" pageId="2" pageNumber="141" rank="species">gen. et sp. nov.</taxonomicNameLabel>
|
||
has evenly-sized, fine rugosities on the supero- and inferomarginals, which are aligned into oblique rows on the inferomarginals (
|
||
<figureCitation id="135EA7BA5A42AA586AA1DB29FE7B1C16" box="[384,469,1892,1918]" captionStart="FIGURE 2" captionStartId="2.[151,250,1390,1414]" captionTargetBox="[151,1437,181,1366]" captionTargetId="figure-24@2.[151,1437,181,1366]" captionTargetPageId="2" captionText="FIGURE 2. A–H, Eoastropecten sechuanensis gen. et sp. nov., marginal ossicles. A, E, holotype superomarginal in abactinal (A) and proximal (E) view (MHI2183/1). B, paratype superomarginal in proximal/distal view (MHI2183/6). C, D, paratype inferomarginal in actinal (C) and distal (D) views (MHI2183/3). B, paratype superomarginal in proximal/distal views (MHI2183/2). F–H, paratype superomarginals in abactinal view (MHI2183/4, /5). I, unidentified astropectind superomarginal in abactinal view (NHMUK EE 17700). J, astropectinid superomarginal in abactinal view (NHMUK PI EE 17701). K, L, marginals of living astropectinid Craspidaster hesperus (Müller & Troschel, 1840), J, superomarginal in abactinal view. K, L, supero-inferomarginal pair.A–H, Maantang Formation (Carnian, Triassic), sample C30, Jiancougou, Sechuan Province, China. I, Lower Oxfordian, Andelot-Morval, Départment du Jura, France. J–L, Recent, Hong Kong." figureDoi="http://doi.org/10.5281/zenodo.4414479" httpUri="https://zenodo.org/record/4414479/files/figure.png" pageId="2" pageNumber="141">Fig. 2C</figureCitation>
|
||
) and which are likely to have carried spines. A similar, but coarser sculpture of rugosities is seen on superomarginals of the Late Cretaceous
|
||
<emphasis id="B911672D5A42AA58682CDBC5FB9A1CCA" box="[781,1076,1928,1954]" italics="true" pageId="2" pageNumber="141">
|
||
“
|
||
<taxonomicName id="4C65C0BC5A42AA586836DBC5FC1F1CCA" box="[791,945,1928,1954]" class="Asteroidea" family="Astropectinidae" genus="Lophidiaster" higherTaxonomySource="GBIF" kingdom="Animalia" order="Paxillosida" pageId="2" pageNumber="141" phylum="Echinodermata" rank="genus">Lophidiaster</taxonomicName>
|
||
” pygmaeus
|
||
</emphasis>
|
||
<bibRefCitation id="EFF4C6CE5A42AA586F1CDBC5FB731CCA" author="Spencer, W. K." box="[1085,1245,1928,1954]" pageId="2" pageNumber="141" pagination="99 - 177" refId="ref2861" refString="Spencer, W. K. (1913) The evolution of the Cretaceous Asteroidea. Philosophical Transactions of the Royal Society of London, Series B, 204, 99 - 177. https: // doi. org / 10.1098 / rstb. 1914.0004" type="journal article" year="1913">Spencer, 1913</bibRefCitation>
|
||
(e.g.,
|
||
<bibRefCitation id="EFF4C6CE5A42AA586E06DBC4FA361CCA" author="Jagt J. W. M." box="[1319,1432,1928,1955]" pageId="2" pageNumber="141" pagination="377 - 503" refId="ref2719" refString="Jagt J. W. M. (2000) Late Cretaceous-Early Palaeogene echinoderms and the K / T boundary in the southeast Netherlands and northeast Belgium-Part 5: Asteroids. Scripta Geologica, 121, 377 - 503." type="journal article" year="2000">Jagt 2000</bibRefCitation>
|
||
, pl. 4: figs 1–7), but these are restricted to the abactinal part of the plate. “
|
||
<taxonomicName id="4C65C0BC5A42AA5868F9DBE1FBC91CAE" authority="Spencer, 1913" authorityName="Spencer" authorityYear="1913" box="[984,1127,1964,1990]" class="Asteroidea" family="Astropectinidae" genus="Lophidiaster" higherTaxonomySource="GBIF" kingdom="Animalia" order="Paxillosida" pageId="2" pageNumber="141" phylum="Echinodermata" rank="genus">
|
||
<emphasis id="B911672D5A42AA5868F9DBE1FBC91CAE" box="[984,1127,1964,1990]" italics="true" pageId="2" pageNumber="141">Lophidiaster</emphasis>
|
||
</taxonomicName>
|
||
”
|
||
<bibRefCitation id="EFF4C6CE5A42AA586F5ADBE1FAB51CAE" author="Spencer, W. K." box="[1147,1307,1964,1990]" pageId="2" pageNumber="141" pagination="99 - 177" refId="ref2861" refString="Spencer, W. K. (1913) The evolution of the Cretaceous Asteroidea. Philosophical Transactions of the Royal Society of London, Series B, 204, 99 - 177. https: // doi. org / 10.1098 / rstb. 1914.0004" type="journal article" year="1913">Spencer, 1913</bibRefCitation>
|
||
is a
|
||
<emphasis id="B911672D5A42AA586E73DBE0FF451C82" italics="true" pageId="2" pageNumber="141">nomen dubium</emphasis>
|
||
to which diverse species have been referred, some of which are certainly not astropectinids. Astropectinid superomarginals with a sculpture like that of
|
||
<taxonomicName id="4C65C0BC5A43AA5969B8DCDAFC941BD8" authority="Gale, 2020" authorityName="Gale" authorityYear="2020" box="[665,826,151,176]" class="Asteroidea" family="Astropectinidae" genus="Eoastropecten" kingdom="Animalia" order="Paxillosida" pageId="3" pageNumber="142" phylum="Echinodermata" rank="genus" status="gen. nov.">
|
||
<emphasis id="B911672D5A43AA5969B8DCDAFC941BD8" box="[665,826,151,176]" italics="true" pageId="3" pageNumber="142">Eoastropecten</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A222DA565A43AA596863DCDAFC041BD9" box="[834,938,151,177]" pageId="3" pageNumber="142" rank="genus">gen. nov.</taxonomicNameLabel>
|
||
are present in the Late Jurassic (Oxfordian;
|
||
<figureCitation id="135EA7BA5A43AA596BB6DCF6FF4D1BBD" box="[151,227,187,213]" captionStart="FIGURE 2" captionStartId="2.[151,250,1390,1414]" captionTargetBox="[151,1437,181,1366]" captionTargetId="figure-24@2.[151,1437,181,1366]" captionTargetPageId="2" captionText="FIGURE 2. A–H, Eoastropecten sechuanensis gen. et sp. nov., marginal ossicles. A, E, holotype superomarginal in abactinal (A) and proximal (E) view (MHI2183/1). B, paratype superomarginal in proximal/distal view (MHI2183/6). C, D, paratype inferomarginal in actinal (C) and distal (D) views (MHI2183/3). B, paratype superomarginal in proximal/distal views (MHI2183/2). F–H, paratype superomarginals in abactinal view (MHI2183/4, /5). I, unidentified astropectind superomarginal in abactinal view (NHMUK EE 17700). J, astropectinid superomarginal in abactinal view (NHMUK PI EE 17701). K, L, marginals of living astropectinid Craspidaster hesperus (Müller & Troschel, 1840), J, superomarginal in abactinal view. K, L, supero-inferomarginal pair.A–H, Maantang Formation (Carnian, Triassic), sample C30, Jiancougou, Sechuan Province, China. I, Lower Oxfordian, Andelot-Morval, Départment du Jura, France. J–L, Recent, Hong Kong." figureDoi="http://doi.org/10.5281/zenodo.4414479" httpUri="https://zenodo.org/record/4414479/files/figure.png" pageId="3" pageNumber="142">Fig. 2I</figureCitation>
|
||
), but the associated inferomarginals lack the distinctive notch on the actinal margin present in the Triassic genus (
|
||
<figureCitation id="135EA7BA5A43AA596BECDC92FEE61B91" box="[205,328,223,249]" captionStart="FIGURE 2" captionStartId="2.[151,250,1390,1414]" captionTargetBox="[151,1437,181,1366]" captionTargetId="figure-24@2.[151,1437,181,1366]" captionTargetPageId="2" captionText="FIGURE 2. A–H, Eoastropecten sechuanensis gen. et sp. nov., marginal ossicles. A, E, holotype superomarginal in abactinal (A) and proximal (E) view (MHI2183/1). B, paratype superomarginal in proximal/distal view (MHI2183/6). C, D, paratype inferomarginal in actinal (C) and distal (D) views (MHI2183/3). B, paratype superomarginal in proximal/distal views (MHI2183/2). F–H, paratype superomarginals in abactinal view (MHI2183/4, /5). I, unidentified astropectind superomarginal in abactinal view (NHMUK EE 17700). J, astropectinid superomarginal in abactinal view (NHMUK PI EE 17701). K, L, marginals of living astropectinid Craspidaster hesperus (Müller & Troschel, 1840), J, superomarginal in abactinal view. K, L, supero-inferomarginal pair.A–H, Maantang Formation (Carnian, Triassic), sample C30, Jiancougou, Sechuan Province, China. I, Lower Oxfordian, Andelot-Morval, Départment du Jura, France. J–L, Recent, Hong Kong." figureDoi="http://doi.org/10.5281/zenodo.4414479" httpUri="https://zenodo.org/record/4414479/files/figure.png" pageId="3" pageNumber="142">Fig. 2C, D</figureCitation>
|
||
). A review and re-description of Mesozoic astropectinid material will be published at a later date.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |