199 lines
23 KiB
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199 lines
23 KiB
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<document id="EC3A5B483A726D2D3738BFE755EEEB58" ID-CLB-Dataset="300555" ID-DOI="10.5281/zenodo.13175056" ID-GBIF-Dataset="347efc47-0aab-4629-98e4-be1034c9fc21" ID-ISSN="1732-2421" ID-Zenodo-Dep="13175056" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="juliana" IM.materialsCitations_approvedBy="juliana" IM.metadata_approvedBy="juliana" IM.taxonomicNames_approvedBy="juliana" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="juliana" checkinTime="1721349230000" checkinUser="felipe" docAuthor="Feist, Raimund" docDate="2002" docId="03D887C9FF8AFF82FCDCF9828FB1F99F" docLanguage="en" docName="ActaPalaeontolPol.47.2.203-210.pdf" docOrigin="Acta Palaeontologica Polonica 47 (2)" docStyle="DocumentStyle:93F5927C23D90727DE855278A6F17B37.1:ActaPalaeontolPol.2002-2009.journal_article" docStyleId="93F5927C23D90727DE855278A6F17B37" docStyleName="ActaPalaeontolPol.2002-2009.journal_article" docStyleVersion="1" docTitle="Gondwanaspis Feist, 2002, gen. nov." docType="treatment" docVersion="3" lastPageNumber="205" masterDocId="FFE1FFB1FF8BFF80FFF0FFE28D62FF99" masterDocTitle="Trilobites from the latest Frasnian Kellwasser Crisis in North Africa (Mrirt, central Moroccan Meseta)" masterLastPageNumber="210" masterPageNumber="203" pageNumber="204" updateTime="1722623223228" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:mods id="8060AA4E32D8B617FAAB88B827C22F57" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="F8B9A8B3C1BA529407FD2E775FBC70BF">
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<mods:title id="D15334AAE754A676BD2D1C4A1CD574EC">Trilobites from the latest Frasnian Kellwasser Crisis in North Africa (Mrirt, central Moroccan Meseta)</mods:title>
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</mods:role>
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<mods:namePart id="0524C51A7E3C556C73CB5AC677830486">Feist, Raimund</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="05359FBEECDAC2A65A0D528F655CB733">text</mods:typeOfResource>
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<mods:titleInfo id="735003A0DA6C4E852E741960FCEE74F1">
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<mods:title id="A203D66CC881C5D37EDBE1701D435FED">Acta Palaeontologica Polonica</mods:title>
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</mods:titleInfo>
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<mods:part id="135663B6EB89C93E766C70121599C7C8">
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<mods:date id="76EE04773767C500624A547043FD730F">2002</mods:date>
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<mods:detail id="1DE1BB836457D8C89B7ACA6D59B074F4" type="pubDate">
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<mods:number id="05B614260F8B20D28037DF1DA6649D2E">2002-12-31</mods:number>
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<mods:detail id="69408F61514FFB1A5BC556690D0621E0" type="volume">
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<mods:number id="F1A080BFC83CACAD6A2E1773B9BFED05">47</mods:number>
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</mods:detail>
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<mods:detail id="DA0FAEDAAB729050A1A54C842747D051" type="issue">
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<mods:number id="5930A70E0FEF24FCAF767285FFB6A38F">2</mods:number>
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<mods:classification id="979C63DD93D4EE04001ED98E090574EB">journal article</mods:classification>
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<mods:identifier id="A188ADB9B00CD4F45C9A37A3B6984075" type="CLB-Dataset">300555</mods:identifier>
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<mods:identifier id="2C72730FE3DB3B1D80C8E6F7937128E3" type="DOI">10.5281/zenodo.13175056</mods:identifier>
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<mods:identifier id="EBC991B3246B9BDEEE071995FB4CF5F9" type="GBIF-Dataset">347efc47-0aab-4629-98e4-be1034c9fc21</mods:identifier>
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<mods:identifier id="867496E4E655218148D90D969CA32C0F" type="ISSN">1732-2421</mods:identifier>
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<mods:identifier id="E267DD1AD44907BA2EBEC2B0902747FB" type="Zenodo-Dep">13175056</mods:identifier>
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<treatment id="03D887C9FF8AFF82FCDCF9828FB1F99F" ID-DOI="http://doi.org/10.5281/zenodo.13175062" ID-Zenodo-Dep="13175062" LSID="urn:lsid:plazi:treatment:03D887C9FF8AFF82FCDCF9828FB1F99F" httpUri="http://treatment.plazi.org/id/03D887C9FF8AFF82FCDCF9828FB1F99F" lastPageId="2" lastPageNumber="205" pageId="1" pageNumber="204">
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<subSubSection id="C36B6554FF8AFF81FCDCF98289A2F9E5" box="[812,1216,1632,1661]" pageId="1" pageNumber="204" type="nomenclature">
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<paragraph id="8BCE36DFFF8AFF81FCDCF98289A2F9E5" blockId="1.[812,1485,1559,2018]" box="[812,1216,1632,1661]" pageId="1" pageNumber="204">
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<heading id="D08681B3FF8AFF81FCDCF98289A2F9E5" box="[812,1216,1632,1661]" fontSize="36" level="2" pageId="1" pageNumber="204" reason="7">
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Genus
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<taxonomicName id="4C714D5CFF8AFF81FC76F9828926F9E4" authorityName="Feist" authorityYear="2002" box="[902,1092,1632,1661]" class="Trilobita" family="Odontopleuridae" genus="Gondwanaspis" kingdom="Animalia" order="Lichida" pageId="1" pageNumber="204" phylum="Arthropoda" rank="genus" status="gen. nov.">
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<emphasis id="B905EACDFF8AFF81FC76F9828926F9E4" box="[902,1092,1632,1661]" italics="true" pageId="1" pageNumber="204">Gondwanaspis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A23657B6FF8AFF81FBBCF98289A2F9E5" box="[1100,1216,1632,1660]" pageId="1" pageNumber="204" rank="genus">gen. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B6554FF8AFF81FCDCF9688845F925" pageId="1" pageNumber="204" type="description">
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<paragraph id="8BCE36DFFF8AFF81FCDCF9688845F925" blockId="1.[812,1485,1559,2018]" pageId="1" pageNumber="204">
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<emphasis id="B905EACDFF8AFF81FCDCF9688E8AF906" box="[812,1000,1674,1696]" italics="true" pageId="1" pageNumber="204">Derivation of name</emphasis>
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: Gondwana, after the paleogeographic occurrence of the new taxon; aspis, heavily armed (with spines).
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B6554FF8AFF81FCDCF92A8995F944" box="[812,1271,1735,1757]" pageId="1" pageNumber="204" type="type_taxon">
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<paragraph id="8BCE36DFFF8AFF81FCDCF92A8995F944" blockId="1.[812,1485,1559,2018]" box="[812,1271,1735,1757]" pageId="1" pageNumber="204">
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<emphasis id="B905EACDFF8AFF81FCDCF92A8EC6F944" box="[812,932,1736,1757]" italics="true" pageId="1" pageNumber="204">
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<typeStatus id="54CA887DFF8AFF81FCDCF92A8E3BF944" box="[812,857,1736,1757]" pageId="1" pageNumber="204">Type</typeStatus>
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species
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</emphasis>
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:
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<taxonomicName id="4C714D5CFF8AFF81FC41F92589C4F944" authorityName="Feist" authorityYear="2002" box="[945,1190,1735,1757]" class="Trilobita" family="Odontopleuridae" genus="Gondwanaspis" kingdom="Animalia" order="Lichida" pageId="1" pageNumber="204" phylum="Arthropoda" rank="species" species="mrirtensis" status="sp. nov.">
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<emphasis id="B905EACDFF8AFF81FC41F92589C4F944" box="[945,1190,1735,1757]" italics="true" pageId="1" pageNumber="204">Gondwanaspis mrirtensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A23657B6FF8AFF81FB5DF9258995F944" box="[1197,1271,1735,1757]" pageId="1" pageNumber="204" rank="species">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B6554FF8AFF81FCDCF90B89E2F882" pageId="1" pageNumber="204" type="taxon_list">
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<paragraph id="8BCE36DFFF8AFF81FCDCF90B89E2F882" blockId="1.[812,1485,1559,2018]" pageId="1" pageNumber="204">
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<emphasis id="B905EACDFF8AFF81FCDCF90B8EADF966" box="[812,975,1769,1791]" italics="true" pageId="1" pageNumber="204">Assigned species</emphasis>
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:
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<taxonomicName id="4C714D5CFF8AFF81FC2DF90B893EF966" authorityName="Feist" authorityYear="2002" box="[989,1116,1769,1791]" class="Trilobita" family="Odontopleuridae" genus="Gondwanaspis" kingdom="Animalia" order="Lichida" pageId="1" pageNumber="204" phylum="Arthropoda" rank="species" species="mrirtensis" status="sp. nov.">
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<emphasis id="B905EACDFF8AFF81FC2DF90B893EF966" box="[989,1116,1769,1791]" italics="true" pageId="1" pageNumber="204">G. mrirtensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A23657B6FF8AFF81FB94F90B89D3F966" box="[1124,1201,1769,1791]" pageId="1" pageNumber="204" rank="species">sp. nov.</taxonomicNameLabel>
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,?
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<taxonomicName id="4C714D5CFF8AFF81FB36F90B891EF882" authority="Richter and Richter, 1926" authorityName="Richter and Richter" authorityYear="1926" class="Trilobita" family="Odontopleuridae" genus="Ceratocephala" kingdom="Animalia" order="Lichida" pageId="1" pageNumber="204" phylum="Arthropoda" rank="species" species="harborti" subGenus="Leonaspis">
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<emphasis id="B905EACDFF8AFF81FB36F90B8837F966" box="[1222,1365,1769,1791]" italics="true" pageId="1" pageNumber="204">Ceratocephala</emphasis>
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(
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<emphasis id="B905EACDFF8AFF81FA94F90888A7F966" box="[1380,1477,1770,1791]" italics="true" pageId="1" pageNumber="204">Leonaspis</emphasis>
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)
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<emphasis id="B905EACDFF8AFF81FCDCF8E78E1EF882" box="[812,892,1797,1819]" italics="true" pageId="1" pageNumber="204">harborti</emphasis>
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<bibRefCitation id="EFE04B2EFF8AFF81FC72F8E7891EF882" author="Richter, R. & Richter, E." box="[898,1148,1797,1819]" pageId="1" pageNumber="204" pagination="1 - 314" refId="ref6576" refString="Richter, R. and Richter, E. 1926. Die Trilobiten des Oberdevons. Beitrage zur Kenntnis devonischer Trilobiten. IV. Abhandlungen der Preussischen Geologischen Landesanstalt 99: 1 - 314." type="journal article" year="1926">Richter and Richter, 1926</bibRefCitation>
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</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B6554FF8AFF81FCDCF8C98EEFF87B" pageId="1" pageNumber="204" type="diagnosis">
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<paragraph id="8BCE36DFFF8AFF81FCDCF8C98EEFF87B" blockId="1.[812,1485,1559,2018]" pageId="1" pageNumber="204">
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<emphasis id="B905EACDFF8AFF81FCDCF8C98EFCF8DB" box="[812,926,1835,1858]" italics="true" pageId="1" pageNumber="204">Diagnosis</emphasis>
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.—Cephalon with glabellar lobes not inflated, rectangular central lobe; straight ocular ridges; no sutural ridges; eye shifted in midst of genal field; no occipital spines; straight, outward directed librigenal spine, exceeding length of glabella; spines along the entire anterior and antero−lateral margins.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36B6554FF89FF82FF96FF018FB1F99F" pageId="2" pageNumber="205" type="discussion">
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<paragraph id="8BCE36DFFF89FF82FF96FF018FACFCC2" blockId="2.[102,775,227,859]" pageId="2" pageNumber="205">
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<emphasis id="B905EACDFF89FF82FF96FF018DAAFF62" box="[102,200,227,251]" italics="true" pageId="2" pageNumber="205">Remarks</emphasis>
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.—
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<taxonomicName id="4C714D5CFF89FF82FF1BFF018CF3FF62" authorityName="Feist" authorityYear="2002" box="[235,401,227,251]" class="Trilobita" family="Odontopleuridae" genus="Gondwanaspis" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus" status="gen. nov.">
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<emphasis id="B905EACDFF89FF82FF1BFF018CF3FF62" box="[235,401,227,251]" italics="true" pageId="2" pageNumber="205">Gondwanaspis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A23657B6FF89FF82FE67FF018C9EFF63" box="[407,508,227,251]" pageId="2" pageNumber="205" rank="genus">gen. nov.</taxonomicNameLabel>
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from the latest Frasnian beds immediately preceding the Upper Kellwasser level both at Mrirt and Coumiac (Montagne Noire), is the youngest known representative of the
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<taxonomicName id="4C714D5CFF89FF82FE52FEA18F00FEC2" authorityName="Burmeister" authorityYear="1843" box="[418,610,323,347]" class="Trilobita" family="Odontopleuridae" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="family">Odontopleuridae</taxonomicName>
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. Together with a new and so far undescribed species from the McWhae Ridge area, Canning Basin,
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<collectingRegion id="49B5F83DFF89FF82FE69FE618F00FE02" box="[409,610,387,411]" country="Australia" name="Western Australia" pageId="2" pageNumber="205">Western Australia</collectingRegion>
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, its occurrence seems to be restricted to terrains of the Gondwana margin. The poorly known mid−Frasnian
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<taxonomicName id="4C714D5CFF89FF82FE25FE218F63FE63" authority="Richter and Richter, 1926" authorityName="Richter and Richter" authorityYear="1926" class="Trilobita" family="Odontopleuridae" genus="Ceratocephala" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="species" species="harborti" subGenus="Leonaspis">
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<emphasis id="B905EACDFF89FF82FE25FE218F19FE42" box="[469,635,451,475]" italics="true" pageId="2" pageNumber="205">Ceratocephala</emphasis>
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(
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<emphasis id="B905EACDFF89FF82FD7CFE218F9CFE43" box="[652,766,451,474]" italics="true" pageId="2" pageNumber="205">Leonaspis</emphasis>
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)
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<emphasis id="B905EACDFF89FF82FF96FE018DA1FE62" box="[102,195,483,507]" italics="true" pageId="2" pageNumber="205">harborti</emphasis>
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<bibRefCitation id="EFE04B2EFF89FF82FF3FFE018F63FE63" author="Richter, R. & Richter, E." box="[207,513,482,507]" pageId="2" pageNumber="205" pagination="1 - 314" refId="ref6576" refString="Richter, R. and Richter, E. 1926. Die Trilobiten des Oberdevons. Beitrage zur Kenntnis devonischer Trilobiten. IV. Abhandlungen der Preussischen Geologischen Landesanstalt 99: 1 - 314." type="journal article" year="1926">Richter and Richter, 1926</bibRefCitation>
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</taxonomicName>
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, that was assigned by
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<bibRefCitation id="EFE04B2EFF89FF82FF96FDE18C66FD83" author="Bruton, D. L." box="[102,260,514,538]" pageId="2" pageNumber="205" pagination="1 - 73" refId="ref5838" refString="Bruton, D. L. 1968. A revision of the Odontopleuridae (Trilobita) from the Palaeozoic of Bohemia. Skrifter Norske Videnskaps-Akademi Oslo. I. Matematis-Naturvidensdkapeling Klasse, Oslo 25: 1 - 73." type="journal article" year="1968">Bruton (1968)</bibRefCitation>
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to the Silurian genus
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<taxonomicName id="4C714D5CFF89FF82FE02FDE18F1EFD82" authorityName="Prantl and Pribyl" authorityYear="1949" box="[498,636,515,539]" class="Trilobita" family="Selenopeltidae" genus="Dudleyaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
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<emphasis id="B905EACDFF89FF82FE02FDE18F1EFD82" box="[498,636,515,539]" italics="true" pageId="2" pageNumber="205">Dudleyaspis</emphasis>
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</taxonomicName>
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, shares with the new genus the rectangular central glabellar lobe and the absence of sutural ridges. However, it is distinct in its swollen lateral glabellar lobes where the anterior third pair is well represented. The latter is inconspicuous or lacking in
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<taxonomicName id="4C714D5CFF89FF82FF96FD418C6EFD22" authorityName="Feist" authorityYear="2002" box="[102,268,675,699]" class="Trilobita" family="Odontopleuridae" genus="Gondwanaspis" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
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<emphasis id="B905EACDFF89FF82FF96FD418C6EFD22" box="[102,268,675,699]" italics="true" pageId="2" pageNumber="205">Gondwanaspis</emphasis>
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</taxonomicName>
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. It is not known whether
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<emphasis id="B905EACDFF89FF82FDD8FD418F59FD23" box="[552,571,675,698]" italics="true" pageId="2" pageNumber="205">C</emphasis>
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.
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<taxonomicName id="4C714D5CFF89FF82FDB8FD418FB6FD22" authorityName="Richter and Richter" authorityYear="1926" box="[584,724,675,699]" class="Trilobita" family="Odontopleuridae" genus="Ceratocephala" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="species" species="harborti" subGenus="Leonaspis">
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(
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<emphasis id="B905EACDFF89FF82FDA1FD418F03FD23" box="[593,609,675,698]" italics="true" pageId="2" pageNumber="205">L</emphasis>
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.)
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<emphasis id="B905EACDFF89FF82FD87FD418FB6FD22" box="[631,724,675,699]" italics="true" pageId="2" pageNumber="205">harborti</emphasis>
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</taxonomicName>
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carries spines on the cranidial anterior border, which is an important feature of the new genus. After the discovery of complete material including pygidia, the possible inclusion of
|
|||
|
|
<emphasis id="B905EACDFF89FF82FD1DFCE18E62FC83" box="[749,768,771,794]" italics="true" pageId="2" pageNumber="205">C</emphasis>
|
|||
|
|
.
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FF96FCC18D90FCA2" authorityName="Richter and Richter" authorityYear="1926" box="[102,242,803,827]" class="Trilobita" family="Odontopleuridae" genus="Ceratocephala" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="species" species="harborti" subGenus="Leonaspis">
|
|||
|
|
(
|
|||
|
|
<emphasis id="B905EACDFF89FF82FF9FFCC18D1DFCA3" box="[111,127,803,826]" italics="true" pageId="2" pageNumber="205">L</emphasis>
|
|||
|
|
.)
|
|||
|
|
<emphasis id="B905EACDFF89FF82FF65FCC18D90FCA2" box="[149,242,803,827]" italics="true" pageId="2" pageNumber="205">harborti</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
in the new genus might be reconsidered, the diagnosis being emended to accommodate this inclusion.
|
|||
|
|
</paragraph>
|
|||
|
|
<paragraph id="8BCE36DFFF89FF82FF96FC8C8FB1F99F" blockId="2.[102,775,877,1542]" pageId="2" pageNumber="205">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FF96FC8C8D9AFC1C" box="[102,248,878,901]" italics="true" pageId="2" pageNumber="205">Comparisons</emphasis>
|
|||
|
|
.—The new genus shares only a few traits with previously known late Devonian representatives of the
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FF96FC4F8C43FC5C" authorityName="Burmeister" authorityYear="1843" box="[102,289,941,965]" class="Trilobita" family="Odontopleuridae" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="family">Odontopleuridae</taxonomicName>
|
|||
|
|
, such as
|
|||
|
|
<emphasis id="B905EACDFF89FF82FE60FC4C8C9DFC5C" box="[400,511,942,965]" italics="true" pageId="2" pageNumber="205">Leonaspis</emphasis>
|
|||
|
|
,
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FDE2FC4F8F1CFC5C" box="[530,638,941,965]" class="Trilobita" family="Odontopleuridae" genus="Radiaspis" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FDE2FC4F8F1CFC5C" box="[530,638,941,965]" italics="true" pageId="2" pageNumber="205">Radiaspis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
, and
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FD33FC4C8DCEFC7C" authorityName="Prantl & Pribyl" authorityYear="1949" class="Trilobita" family="Odontopleuridae" genus="Koneprusia" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FD33FC4C8DCEFC7C" italics="true" pageId="2" pageNumber="205">Koneprusia</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
, which exhibit back−curved ocular ridges and genal spines, as well as eyes positioned near to the posterior margin. In this regard and despite the considerable difference in age, it is more closely related to the Silurian
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FDF8FBCF8D93FBFF" authority="Prantl and Pribyl, 1949" authorityName="Prantl and Pribyl" authorityYear="1949" class="Trilobita" family="Selenopeltidae" genus="Dudleyaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FDF8FBCF8FF2FBDC" box="[520,656,1069,1093]" italics="true" pageId="2" pageNumber="205">Dudleyaspis</emphasis>
|
|||
|
|
Prantl and Přibyl, 1949
|
|||
|
|
</taxonomicName>
|
|||
|
|
and in particular to
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FE12FBAC8F01FBFF" box="[482,611,1102,1126]" class="Trilobita" family="Selenopeltidae" genus="Dudleyaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="species" species="uncifera">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FE12FBAC8F01FBFF" box="[482,611,1102,1126]" italics="true" pageId="2" pageNumber="205">D. uncifera</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
from Gotland (
|
|||
|
|
<bibRefCitation id="EFE04B2EFF89FF82FF9DFB8F8C7CFB1F" author="Ramskold, L." box="[109,286,1133,1158]" pageId="2" pageNumber="205" pagination="239 - 264" refId="ref6431" refString="Ramskold, L. 1984. Silurian Odontopleurid Trilobites from Gotland. Palaeontology 27 (2): 239 - 264." type="journal article" year="1984">Ramsköld 1984</bibRefCitation>
|
|||
|
|
). It differs from
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FE3CFB8F8F36FB1C" authorityName="Prantl and Pribyl" authorityYear="1949" box="[460,596,1133,1157]" class="Trilobita" family="Selenopeltidae" genus="Dudleyaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FE3CFB8F8F36FB1C" box="[460,596,1133,1157]" italics="true" pageId="2" pageNumber="205">Dudleyaspis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
in having a rectangular central glabellar lobe, the lateral lobes not swollen, the anteriormost of which are inconspicuous, in absence of sutural ridges, in having straight border spines that are also present on the central portion of the anterior border, and in the considerably advanced, not back−curved genal spine.
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FDBEFAEC8FB4FABF" authorityName="Prantl and Pribyl" authorityYear="1949" box="[590,726,1294,1318]" class="Trilobita" family="Selenopeltidae" genus="Dudleyaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FDBEFAEC8FB4FABF" box="[590,726,1294,1318]" italics="true" pageId="2" pageNumber="205">Dudleyaspis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
was included by
|
|||
|
|
<bibRefCitation id="EFE04B2EFF89FF82FF1BFACC8F32FADF" author="Ramskold, L. & Chatterton, B. D. E." box="[235,592,1326,1350]" pageId="2" pageNumber="205" pagination="333 - 371" refId="ref6453" refString="Ramskold, L. and Chatterton, B. D. E. 1991. Revision and subdivision of the polyphyletic " Leonaspis " (Trilobita). Transactions of the Royal Society of Edinburgh - Earth Sciences 82: 333 - 371." type="journal article" year="1991">Ramsköld and Chatterton (1991)</bibRefCitation>
|
|||
|
|
in the subfamily
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FF96FAAC8CF8FAFC" authority="Salter, 1864" authorityName="Salter" authorityYear="1864" box="[102,410,1357,1382]" class="Trilobita" family="Odontopleuridae" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="subFamily" subFamily="Acidaspidinae">
|
|||
|
|
Acidaspidinae
|
|||
|
|
<bibRefCitation id="EFE04B2EFF89FF82FEFFFAAC8CF8FAFC" author="Salter, J. W." box="[271,410,1357,1382]" pageId="2" pageNumber="205" refId="ref6637" refString="Salter, J. W. 1864 - 1883. A Monograph of British Trilobites, II. 224 pp. Palaeontographical Society, London." type="book" year="1864">Salter, 1864</bibRefCitation>
|
|||
|
|
</taxonomicName>
|
|||
|
|
. Though the origin of the new taxon is somewhat enigmatic, as no direct Devonian ancestors are known so far, it is tentatively assigned here to the
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FD4CFA6C8DA6FA5F" authorityName="Salter" authorityYear="1864" class="Trilobita" family="Odontopleuridae" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="subFamily" subFamily="Acidaspidinae">Acidaspidinae</taxonomicName>
|
|||
|
|
, because of the close resemblance to
|
|||
|
|
<taxonomicName id="4C714D5CFF89FF82FD88FA4C8F9DFA5F" authorityName="Prantl and Pribyl" authorityYear="1949" box="[632,767,1454,1478]" class="Trilobita" family="Selenopeltidae" genus="Dudleyaspis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lichida" pageId="2" pageNumber="205" phylum="Arthropoda" rank="genus">
|
|||
|
|
<emphasis id="B905EACDFF89FF82FD88FA4C8F9DFA5F" box="[632,767,1454,1478]" italics="true" pageId="2" pageNumber="205">Dudleyaspis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
. This attribution will need to be reconsidered after the discovery of the so far unknown thoracic and pygidial features.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
</treatment>
|
|||
|
|
</document>
|