251 lines
27 KiB
XML
251 lines
27 KiB
XML
<document id="AA7C583D1FB2B45C289DB6343B003F10" ID-DOI="10.5194/fr-18-81-2015" ID-ISSN="2193-0074" ID-Zenodo-Dep="11585625" IM.bibliography_approvedBy="carolina" IM.illustrations_approvedBy="carolina" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="carolina" IM.taxonomicNames_approvedBy="carolina" IM.treatments_approvedBy="carolina" checkinTime="1716844663622" checkinUser="felipe" docAuthor="Titus, A. L., Korn, D., Harrell, J. E. & Lambert, L. L." docDate="2015" docId="039287BEFC5AFFABFFA9FBC5FE89FC39" docLanguage="en" docName="FossRec.18.2.81-104.pdf" docOrigin="Fossil Record 18 (2)" docSource="http://dx.doi.org/10.5194/fr-18-81-2015" docStyle="DocumentStyle:1B3764FFAC190C6D25C29F616DE4358D.2:FossRec.2014-2021.journal_article" docStyleId="1B3764FFAC190C6D25C29F616DE4358D" docStyleName="FossRec.2014-2021.journal_article" docStyleVersion="2" docTitle="Girtyoceras hamiltonense Korn and Titus 2011" docType="treatment" docVersion="5" lastPageNumber="87" masterDocId="FFABFFC6FC5CFFACFFD5FFF5FFC9FF94" masterDocTitle="Late Viséan (late Mississippian) ammonoids from the Barnett Shale, Sierra Diablo Escarpment, Culberson County, Texas, USA" masterLastPageNumber="104" masterPageNumber="81" pageNumber="87" updateTime="1718146734426" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="9F9E636026DA0602FB450598920E4FBA">Late Viséan (late Mississippian) ammonoids from the Barnett Shale, Sierra Diablo Escarpment, Culberson County, Texas, USA</mods:title>
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<mods:name id="4D4289701B9F0615FF1E1930FD33DE29" type="personal">
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<mods:namePart id="1432A4C46039F8CCC8A62E5782E8482F">Titus, A. L.</mods:namePart>
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<mods:affiliation id="C1687AC733D76806DF31E19F26517B92">D. Korn & Grand Staircase-Escalante National Monument, 669 S. Highway 89 A, Kanab, UT 84741, USA</mods:affiliation>
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<mods:roleTerm id="E5F7AB198C828897C866C936817AFD48">Author</mods:roleTerm>
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<mods:namePart id="ED974409F26CF705F03BC961D5B7997F">Korn, D.</mods:namePart>
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<mods:affiliation id="4B22F7C0A692E0395613129D7709EBBC">J. E. Harrell & Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43,</mods:affiliation>
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<mods:name id="A3113D83134B47D5A6291AA164038922" type="personal">
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<mods:namePart id="16E95DBFF6410D54FCB4BABF8CA342B8">Harrell, J. E.</mods:namePart>
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<mods:affiliation id="561366EACFEB46AF0CD898B07BDE8E44">L. L. Lambert & Noble Energy Inc., Houston, TX 77070, USA</mods:affiliation>
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<mods:namePart id="EBEF22511B604AAF071F3F3B3B04FB4E">Lambert, L. L.</mods:namePart>
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<mods:affiliation id="82110A2603110C28A656134E58C0D9AA">Department of Geological Sciences, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA</mods:affiliation>
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<mods:typeOfResource id="6D50E162AFCECC14331AAC885B49CE90">text</mods:typeOfResource>
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<mods:title id="B333BE7DD012B84157FC49FB2FFCA663">Fossil Record</mods:title>
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<mods:date id="9652E19714EBD0BA6417B03AE1C450A5">2015</mods:date>
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<mods:number id="7985FF0C3AB975AA94DB2385282129D6">2015-06-04</mods:number>
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<mods:number id="FE3BB325A773356A5B1652D9A647CE03">18</mods:number>
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<mods:start id="41E875BF312CA666D988E4BB726B9FAE">81</mods:start>
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<mods:identifier id="4FB5481532F4CFFE528CF9AE7FDBBA69" type="ZooBank">6C6A1411-F88F-45C2-BA4A-D97C4CD4B415</mods:identifier>
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<treatment id="039287BEFC5AFFABFFA9FBC5FE89FC39" LSID="urn:lsid:plazi:treatment:039287BEFC5AFFABFFA9FBC5FE89FC39" httpUri="http://treatment.plazi.org/id/039287BEFC5AFFABFFA9FBC5FE89FC39" lastPageId="7" lastPageNumber="87" pageId="6" pageNumber="87">
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<subSubSection id="C3216523FC5AFFAAFFA9FBC5FD2DFBDC" box="[124,740,1072,1096]" pageId="6" pageNumber="87" type="nomenclature">
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<paragraph id="8B8436A8FC5AFFAAFFA9FBC5FD2DFBDC" blockId="6.[124,740,1072,1096]" box="[124,740,1072,1096]" pageId="6" pageNumber="87">
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<heading id="D0CC81C4FC5AFFAAFFA9FBC5FD2DFBDC" box="[124,740,1072,1096]" fontSize="10" level="2" pageId="6" pageNumber="87" reason="4">
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<emphasis id="B94FEABAFC5AFFAAFFA9FBC5FD2DFBDC" bold="true" box="[124,740,1072,1096]" pageId="6" pageNumber="87">
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<taxonomicName id="4C3B4D2BFC5AFFAAFFA9FBC5FD45FBDC" ID-CoL="6KHB4" authority="Korn and Titus, 2011" authorityName="Korn and Titus" authorityYear="2011" box="[124,652,1072,1096]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" order="Goniatitida" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="hamiltonense">
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<emphasis id="B94FEABAFC5AFFAAFFA9FBC5FE5FFBDC" bold="true" box="[124,406,1072,1096]" italics="true" pageId="6" pageNumber="87">Girtyoceras hamiltonense</emphasis>
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<bibRefCitation id="EFAA4B59FC5AFFAAFE49FBC5FD45FBDC" author="Korn, D. & Titus, A. L." box="[412,652,1072,1096]" pageId="6" pageNumber="87" pagination="107 - 196" refId="ref17423" refString="Korn, D. and Titus, A. L.: Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah), Bull. Geosci., 86, 107 - 196, doi: 10.3140 / bull. geosci. 1242, 2011." type="journal article" year="2011">Korn and Titus, 2011</bibRefCitation>
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</taxonomicName>
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||
(
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<figureCitation id="13002A2DFC5AFFAAFD4EFBC5FD15FBDC" box="[667,732,1072,1096]" captionStart="Figure 5" captionStartId="6.[819,886,975,997]" captionTargetBox="[858,1429,487,938]" captionTargetId="figure-404@6.[841,1440,476,944]" captionTargetPageId="6" captionText="Figure 5. Girtyoceras hamiltonense Korn and Titus, 2011 from the Figure 2 Ranch section, Sierra Diablo. Specimen NPL 68361 from bed 9 (sample 00TXCU-21b); × 2.5." figureDoi="http://doi.org/10.5281/zenodo.11585635" httpUri="https://zenodo.org/record/11585635/files/figure.png" pageId="6" pageNumber="87">Fig. 5</figureCitation>
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)
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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="C3216523FC5AFFAAFFA9FB98FDDAFAB7" pageId="6" pageNumber="87" type="reference_group">
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||
<paragraph id="8B8436A8FC5AFFAAFFA9FB98FEA2FB30" blockId="6.[124,767,1132,1315]" pageId="6" pageNumber="87">
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1949
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<taxonomicName id="4C3B4D2BFC5AFFAAFF68FB99FEF5FB10" authorityName="Wedekind" authorityYear="1918" box="[189,316,1132,1156]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" order="Goniatitida" pageId="6" pageNumber="87" phylum="Mollusca" rank="genus">
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<emphasis id="B94FEABAFC5AFFAAFF68FB99FEF5FB10" box="[189,316,1132,1156]" italics="true" pageId="6" pageNumber="87">Girtyoceras</emphasis>
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</taxonomicName>
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aff.
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<taxonomicName id="4C3B4D2BFC5AFFAAFEA2FB99FDECFB10" authorityName="Girty" authorityYear="1909" box="[375,549,1132,1156]" class="Cephalopoda" family="Girtyoceratidae" genus="Adelphoceras" kingdom="Animalia" order="Goniatitida" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="meslerianum">
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<emphasis id="B94FEABAFC5AFFAAFEA2FB99FDECFB10" box="[375,549,1132,1156]" italics="true" pageId="6" pageNumber="87">G. meslerianum</emphasis>
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</taxonomicName>
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. – Miller et al., p. 608, pl. 99, figs. 9, 10.
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</paragraph>
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<paragraph id="8B8436A8FC5AFFAAFFA9FB58FEAAFB77" blockId="6.[124,767,1132,1315]" pageId="6" pageNumber="87">
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1964
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<taxonomicName id="4C3B4D2BFC5AFFAAFF6AFB59FE1DFB50" baseAuthorityName="Girty" baseAuthorityYear="1909" box="[191,468,1196,1220]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" order="Goniatitida" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="meslerianum">
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<emphasis id="B94FEABAFC5AFFAAFF6AFB59FE1DFB50" box="[191,468,1196,1220]" italics="true" pageId="6" pageNumber="87">Girtyoceras meslerianum</emphasis>
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</taxonomicName>
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. – McCaleb et al., p. 13 (part), pl. 2, figs. 8, 9.
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</paragraph>
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<paragraph id="8B8436A8FC5AFFAAFFA9FB19FDDAFAB7" blockId="6.[124,767,1132,1315]" pageId="6" pageNumber="87">
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||
2011
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<taxonomicName id="4C3B4D2BFC5AFFAAFF15FB19FD53FA97" authority="Korn and Titus" authorityName="Korn and Titus" authorityYear="2011" box="[192,666,1260,1284]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" order="Goniatitida" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="hamiltonense">
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<emphasis id="B94FEABAFC5AFFAAFF15FB19FE12FA90" box="[192,475,1260,1284]" italics="true" pageId="6" pageNumber="87">Girtyoceras hamiltonense</emphasis>
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Korn and Titus
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</taxonomicName>
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, p. 150, text-figs. 30, 31 [for more synonymy].
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</paragraph>
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</subSubSection>
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||
<subSubSection id="C3216523FC5AFFAAFFA9FAB9FE25F9D6" pageId="6" pageNumber="87" type="materials_examined">
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||
<paragraph id="8B8436A8FC5AFFAAFFA9FAB9FEA0FA17" blockId="6.[124,767,1356,1921]" pageId="6" pageNumber="87">
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<materialsCitation id="3B533CF5FC5AFFAAFFA9FAB9FEA0FA17" collectionCode="UMNH" pageId="6" pageNumber="87" specimenCode="IP 3127" specimenCount="1" typeStatus="holotype">
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||
<typeStatus id="5480880AFC5AFFAAFFA9FAB9FF2AFAF7" box="[124,227,1356,1379]" pageId="6" pageNumber="87" type="holotype">Holotype</typeStatus>
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: Specimen
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<collectionCode id="ED2AAE6DFC5AFFAAFE8CFAB9FE63FAF7" box="[345,426,1356,1379]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34862" lsid="urn:lsid:biocol.org:col:34862" name="Utah Museum of Natural History" pageId="6" pageNumber="87" type="Museum">UMNH</collectionCode>
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<specimenCode id="DB9D9ED3FC5AFFAAFE65FAB9FDCDFAF7" box="[432,516,1356,1379]" collectionCode="UMNH" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34862" lsid="urn:lsid:biocol.org:col:34862" name="Utah Museum of Natural History" pageId="6" pageNumber="87" type="Museum">IP 3127</specimenCode>
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; illustrated by
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<bibRefCitation id="EFAA4B59FC5AFFAAFD48FAB9FF30FA17" author="Korn, D. & Titus, A. L." pageId="6" pageNumber="87" pagination="107 - 196" refId="ref17423" refString="Korn, D. and Titus, A. L.: Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah), Bull. Geosci., 86, 107 - 196, doi: 10.3140 / bull. geosci. 1242, 2011." type="journal article" year="2011">Korn and Titus (2011</bibRefCitation>
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||
, fig. 30B).
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</materialsCitation>
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</paragraph>
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||
<paragraph id="8B8436A8FC5AFFAAFFA9FA79FEECFA76" blockId="6.[124,767,1356,1921]" pageId="6" pageNumber="87">
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Type locality and horizon: Hamilton Canyon, bed 44; Camp Canyon Member of Chainman Formation,
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<taxonomicName id="4C3B4D2BFC5AFFAAFD82FA5EFEECFA76" authority="Biozone." authorityName="Biozone." class="Cephalopoda" family="Goniatitidae" genus="Goniatites" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="eganensis">
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<emphasis id="B94FEABAFC5AFFAAFD82FA5EFF77FA77" italics="true" pageId="6" pageNumber="87">Goniatites eganensis</emphasis>
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Biozone.
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</taxonomicName>
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</paragraph>
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<paragraph id="8B8436A8FC5AFFAAFFA9FA1EFE25F9D6" blockId="6.[124,767,1356,1921]" pageId="6" pageNumber="87">
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<materialsCitation id="3B533CF5FC5AFFAAFFA9FA1EFF66F9B6" collectionCode="NPL" pageId="6" pageNumber="87" specimenCode="NPL 68361" specimenCount="4">
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Material:
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<specimenCount id="9D3DFD21FC5AFFAAFF32FA1EFE5DF996" box="[231,404,1515,1538]" count="4" pageId="6" pageNumber="87" type="generic">Four specimens</specimenCount>
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||
,
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<specimenCode id="DB9D9ED3FC5AFFAAFE77FA1EFDE9F996" box="[418,544,1515,1538]" collectionCode="NPL" country="USA" httpUri="http://grbio.org/cool/q79f-q0gz" name="University of Texas at Austin" pageId="6" pageNumber="87" type="University or college">NPL 68361</specimenCode>
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(sample OOTXCU-21q)
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</materialsCitation>
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,
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<materialsCitation id="3B533CF5FC5AFFAAFF6DF9FEFDF3F9B6" box="[184,570,1547,1570]" collectionCode="NPL" isTailEnumeration="true" pageId="6" pageNumber="87" specimenCode="NPL 68362" specimenCount="1">
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<specimenCode id="DB9D9ED3FC5AFFAAFF6DF9FEFEFBF9B6" box="[184,306,1547,1570]" collectionCode="NPL" country="USA" httpUri="http://grbio.org/cool/q79f-q0gz" name="University of Texas at Austin" pageId="6" pageNumber="87" type="University or college">NPL 68362</specimenCode>
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(sample OOTXCU-21b)
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</materialsCitation>
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,
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<materialsCitation id="3B533CF5FC5AFFAAFD96F9FEFE82F9D6" collectionCode="NPL" pageId="6" pageNumber="87" specimenCode="NPL 68363" specimenCount="1">
|
||
<specimenCode id="DB9D9ED3FC5AFFAAFD96F9FEFD74F9B6" box="[579,701,1547,1570]" collectionCode="NPL" country="USA" httpUri="http://grbio.org/cool/q79f-q0gz" name="University of Texas at Austin" pageId="6" pageNumber="87" type="University or college">NPL 68363</specimenCode>
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(sample OOTXCU-21a)
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</materialsCitation>
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,
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<materialsCitation id="3B533CF5FC5AFFAAFE83F9DEFE21F9D6" box="[342,488,1579,1602]" collectionCode="UTSA" pageId="6" pageNumber="87" specimenCode="UTSA 07062" specimenCount="1">
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<specimenCode id="DB9D9ED3FC5AFFAAFE83F9DEFE21F9D6" box="[342,488,1579,1602]" collectionCode="UTSA" pageId="6" pageNumber="87">UTSA 07062</specimenCode>
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</materialsCitation>
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||
.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C3216523FC5AFFAAFFA9F9BEFF03F916" pageId="6" pageNumber="87" type="diagnosis">
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<paragraph id="8B8436A8FC5AFFAAFFA9F9BEFF03F916" blockId="6.[124,767,1356,1921]" pageId="6" pageNumber="87">
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Diagnosis: For a complete diagnosis see
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<bibRefCitation id="EFAA4B59FC5AFFAAFD86F9BEFF0FF916" author="Korn, D. & Titus, A. L." pageId="6" pageNumber="87" pagination="107 - 196" refId="ref17423" refString="Korn, D. and Titus, A. L.: Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah), Bull. Geosci., 86, 107 - 196, doi: 10.3140 / bull. geosci. 1242, 2011." type="journal article" year="2011">Korn and Titus (2011)</bibRefCitation>
|
||
.
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||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3216523FC5AFFAAFFA9F97EFA64F936" pageId="6" pageNumber="87" type="description">
|
||
<paragraph id="8B8436A8FC5AFFAAFFA9F97EFC43FB77" blockId="6.[124,767,1356,1921]" lastBlockId="6.[819,1462,1133,1921]" pageId="6" pageNumber="87">
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Description: The largest specimen, nearly
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<quantity id="4CC39B4DFC5AFFAAFD9DF97EFD59F936" box="[584,656,1675,1698]" metricMagnitude="-2" metricUnit="m" metricValue="2.2" pageId="6" pageNumber="87" unit="mm" value="22.0">22 mm</quantity>
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conch diameter (
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||
<tableCitation id="C6B90313FC5AFFAAFF0CF95EFEE6F956" box="[217,303,1707,1730]" captionStart="Table 1" captionStartId="6.[124,180,177,199]" captionTargetPageId="6" captionText="Table 1. Conch dimensions (in millimetres) and proportions for Girtyoceras hamiltonense Korn and Titus, 2011, from the Sierra Diablo." httpUri="http://table.plazi.org/id/DF446620FC5AFFAAFFA9FF44FA5EFF53" pageId="6" pageNumber="87" tableUuid="DF446620FC5AFFAAFFA9FF44FA5EFF53">Table 1</tableCitation>
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||
), is almost fully ornamented and has a thinly discoidal, subinvolute conch shape (ww / dm = 0.42; uw / dm = 0.18). At the largest diameter, it possesses an angular umbilical margin, subparallel flanks, and a narrowly rounded venter. The fine growth lines are strongly biconvex with a prominent ventrolateral projection and a deep ventral sinus. The last volution displays four shell constrictions extending parallel to the growth lines. They originate just outside the umbilical margin on the inner flank area; they are deepest on the mid-flank but continue across the venter (
|
||
<figureCitation id="13002A2DFC5AFFAAFCEEFB39FCB5FB77" box="[827,892,1228,1251]" captionStart="Figure 5" captionStartId="6.[819,886,975,997]" captionTargetBox="[858,1429,487,938]" captionTargetId="figure-404@6.[841,1440,476,944]" captionTargetPageId="6" captionText="Figure 5. Girtyoceras hamiltonense Korn and Titus, 2011 from the Figure 2 Ranch section, Sierra Diablo. Specimen NPL 68361 from bed 9 (sample 00TXCU-21b); × 2.5." figureDoi="http://doi.org/10.5281/zenodo.11585635" httpUri="https://zenodo.org/record/11585635/files/figure.png" pageId="6" pageNumber="87">Fig. 5</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8B8436A8FC5AFFAAFC9BFB19FC1BFA57" blockId="6.[819,1462,1133,1921]" pageId="6" pageNumber="87">
|
||
The next smaller specimen (
|
||
<collectionCode id="ED2AAE6DFC5AFFAAFB46FB19FB0EFA97" box="[1171,1223,1260,1283]" country="USA" httpUri="http://grbio.org/cool/q79f-q0gz" name="University of Texas at Austin" pageId="6" pageNumber="87" type="University or college">NPL</collectionCode>
|
||
68362) has a conch diameter of nearly
|
||
<quantity id="4CC39B4DFC5AFFAAFBD9FAF9FB9DFAB7" box="[1036,1108,1292,1315]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="6" pageNumber="87" unit="mm" value="15.0">15 mm</quantity>
|
||
with similar conch proportions (ww / dm = 0.45; uw / dm = 0.25). It is a partly testiferous internal mould with predepositional breakage to the living chamber. There are four constrictions, which are, as in all specimens, visible externally. The fine rib density is about 12 per millimetre.
|
||
</paragraph>
|
||
<paragraph id="8B8436A8FC5AFFAAFC9BFA3EFA64F936" blockId="6.[819,1462,1133,1921]" pageId="6" pageNumber="87">
|
||
The smallest specimen (
|
||
<collectionCode id="ED2AAE6DFC5AFFAAFB8CFA3EFB69FA76" box="[1113,1184,1483,1506]" pageId="6" pageNumber="87">UTSA</collectionCode>
|
||
07062) is approximately
|
||
<quantity id="4CC39B4DFC5AFFAAFCE6FA1EFCB2F996" box="[819,891,1515,1538]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="87" unit="mm" value="10.0">10 mm</quantity>
|
||
in diameter, thickly discoidal, and broken obliquely, but nearly in half, with the other half missing. The umbilical shoulders are angular and about 90
|
||
<superScript id="7C4E9BE0FC5AFFAAFB71F9DEFB67F9A3" attach="none" box="[1188,1198,1579,1591]" fontSize="8" pageId="6" pageNumber="87">◦</superScript>
|
||
. The umbilical width index is entirely within a narrow range. Ribs and constrictions are moderately sinuous, and just start to develop a ventral sinus at about
|
||
<quantity id="4CC39B4DFC5AFFAAFC19F97EFBCEF936" box="[972,1031,1675,1698]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="6" pageNumber="87" unit="mm" value="8.0">8 mm</quantity>
|
||
diameter. There are three constrictions.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3216523FC5AFFABFC9BF95EFE89FC39" lastPageId="7" lastPageNumber="88" pageId="6" pageNumber="87" type="discussion">
|
||
<paragraph id="8B8436A8FC5AFFABFC9BF95EFE89FC39" blockId="6.[819,1462,1133,1921]" lastBlockId="7.[124,767,663,941]" lastPageId="7" lastPageNumber="88" pageId="6" pageNumber="87">
|
||
Discussion:
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFC01F95FFB4CF956" authorityName="Korn and Titus" authorityYear="2011" box="[980,1157,1706,1730]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="hamiltonense">
|
||
<emphasis id="B94FEABAFC5AFFAAFC01F95FFB4CF956" box="[980,1157,1706,1730]" italics="true" pageId="6" pageNumber="87">G. hamiltonense</emphasis>
|
||
</taxonomicName>
|
||
is the stratigraphically oldest
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFC8DF93FFBE2F975" box="[856,1067,1738,1762]" pageId="6" pageNumber="87">
|
||
<emphasis id="B94FEABAFC5AFFAAFC8DF93FFC1EF976" box="[856,983,1738,1762]" italics="true" pageId="6" pageNumber="87">Girtyoceras</emphasis>
|
||
species
|
||
</taxonomicName>
|
||
currently known from the Sierra Diablo section. It resembles
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFB98F91FFA7BF895" authority="Korn and Titus, 2011" authorityName="Korn and Titus" authorityYear="2011" box="[1101,1458,1770,1794]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="gordoni">
|
||
<emphasis id="B94FEABAFC5AFFAAFB98F91FFB0BF896" box="[1101,1218,1770,1794]" italics="true" pageId="6" pageNumber="87">G. gordoni</emphasis>
|
||
<bibRefCitation id="EFAA4B59FC5AFFAAFB1FF91FFA7BF895" author="Korn, D. & Titus, A. L." box="[1226,1458,1770,1793]" pageId="6" pageNumber="87" pagination="107 - 196" refId="ref17423" refString="Korn, D. and Titus, A. L.: Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah), Bull. Geosci., 86, 107 - 196, doi: 10.3140 / bull. geosci. 1242, 2011." type="journal article" year="2011">Korn and Titus, 2011</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFCE6F8FFFBF5F8B5" authority="Gordon, 1965" authorityName="Gordon" authorityYear="1965" box="[819,1084,1802,1826]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="welleri">
|
||
<emphasis id="B94FEABAFC5AFFAAFCE6F8FFFC57F8B6" box="[819,926,1802,1826]" italics="true" pageId="6" pageNumber="87">G. welleri</emphasis>
|
||
<bibRefCitation id="EFAA4B59FC5AFFAAFC70F8FFFBF5F8B5" author="Gordon, M. J." box="[933,1084,1802,1825]" pageId="6" pageNumber="87" pagination="1 - 322" refId="ref16774" refString="Gordon, M. J.: Carboniferous Cephalopods of Arkansas, Professional Papers, U. S. Geological Survey, 460, 1 - 322, 1965." type="journal article" year="1965">Gordon, 1965</bibRefCitation>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFBA1F8FFFA7AF8B5" authority="(Girty, 1909)" baseAuthorityName="Girty" baseAuthorityYear="1909" box="[1140,1459,1802,1826]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="meslerianum">
|
||
<emphasis id="B94FEABAFC5AFFAAFBA1F8FFFAD4F8B6" box="[1140,1309,1802,1826]" italics="true" pageId="6" pageNumber="87">G. meslerianum</emphasis>
|
||
(
|
||
<bibRefCitation id="EFAA4B59FC5AFFAAFAF9F8FFFA63F8B5" author="Girty, G. H." box="[1324,1450,1802,1825]" pageId="6" pageNumber="87" pagination="1 - 106" refId="ref16650" refString="Girty, G. H.: The fauna of the Caney Shale of Oklahoma, Bulletin of the U. S. Geological Survey, 377, 1 - 106, 1909." type="journal article" year="1909">Girty, 1909</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. However,
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFC75F8DFFBDCF8D6" authorityName="Korn and Titus" authorityYear="2011" box="[928,1045,1834,1858]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="gordoni">
|
||
<emphasis id="B94FEABAFC5AFFAAFC75F8DFFBDCF8D6" box="[928,1045,1834,1858]" italics="true" pageId="6" pageNumber="87">G. gordoni</emphasis>
|
||
</taxonomicName>
|
||
has less sinuous ribs and constrictions at comparable diameters, while
|
||
<taxonomicName id="4C3B4D2BFC5AFFAAFB52F8BFFB3BF8F6" authorityName="Gordon" authorityYear="1965" box="[1159,1266,1866,1890]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="6" pageNumber="87" phylum="Mollusca" rank="species" species="welleri">
|
||
<emphasis id="B94FEABAFC5AFFAAFB52F8BFFB3BF8F6" box="[1159,1266,1866,1890]" italics="true" pageId="6" pageNumber="87">G. welleri</emphasis>
|
||
</taxonomicName>
|
||
has a slightly narrower umbilicus between 6 and
|
||
<quantity id="4CC39B4DFC5AFFAAFB44F89FFB10F815" box="[1169,1241,1898,1921]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="6" pageNumber="87" unit="mm" value="20.0">20 mm</quantity>
|
||
conch diameter and a more narrowly rounded ventral profile at diameters between 6 and
|
||
<quantity id="4CC39B4DFC5BFFABFEDAFD42FE92FD5A" box="[271,347,695,718]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="7" pageNumber="88" unit="mm" value="15.0">15 mm</quantity>
|
||
.
|
||
<taxonomicName id="4C3B4D2BFC5BFFABFEBDFD42FDD2FD5B" authorityName="Korn and Titus" authorityYear="2011" box="[360,539,695,719]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="7" pageNumber="88" phylum="Mollusca" rank="species" species="hamiltonense">
|
||
<emphasis id="B94FEABAFC5BFFABFEBDFD42FDD2FD5B" box="[360,539,695,719]" italics="true" pageId="7" pageNumber="88">G. hamiltonense</emphasis>
|
||
</taxonomicName>
|
||
is now known from
|
||
<collectingRegion id="49FFF84AFC5BFFABFFA9FD22FF05FD7A" box="[124,204,727,750]" country="United States of America" name="Nevada" pageId="7" pageNumber="88">Nevada</collectingRegion>
|
||
and
|
||
<collectingRegion id="49FFF84AFC5BFFABFED3FD22FEF3FD7A" box="[262,314,727,750]" country="United States of America" name="Utah" pageId="7" pageNumber="88">Utah</collectingRegion>
|
||
(Chainman Shale) and the Sierra Diablo (bed 9). The near time-equivalent species
|
||
<taxonomicName id="4C3B4D2BFC5BFFABFD91FD03FD78FC9A" authorityName="Gordon" authorityYear="1965" box="[580,689,758,782]" class="Cephalopoda" family="Girtyoceratidae" genus="Girtyoceras" kingdom="Animalia" pageId="7" pageNumber="88" phylum="Mollusca" rank="species" species="welleri">
|
||
<emphasis id="B94FEABAFC5BFFABFD91FD03FD78FC9A" box="[580,689,758,782]" italics="true" pageId="7" pageNumber="88">G. welleri</emphasis>
|
||
</taxonomicName>
|
||
occurs in the lower portion of Moorefield Formation near Batesville,
|
||
<collectingRegion id="49FFF84AFC5BFFABFFA9FCC2FF2BFCDA" box="[124,226,823,846]" country="United States of America" name="Arkansas" pageId="7" pageNumber="88">Arkansas</collectingRegion>
|
||
, and the Caney Shale of the Arbuckle Mountains region. In every case, these eastern occurrences are the oldest known horizons with a
|
||
<taxonomicName id="4C3B4D2BFC5BFFABFE4CFC83FDC1FC1A" authorityName="de Haan" authorityYear="1825" box="[409,520,886,910]" class="Cephalopoda" family="Goniatitidae" genus="Goniatites" kingdom="Animalia" pageId="7" pageNumber="88" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B94FEABAFC5BFFABFE4CFC83FDC1FC1A" box="[409,520,886,910]" italics="true" pageId="7" pageNumber="88">Goniatites</emphasis>
|
||
</taxonomicName>
|
||
assemblage at their respective localities.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |