<documentid="D24A20D9ACF9043942FF32D5E68AD33D"ID-CLB-Dataset="298388"ID-DOI="10.5194/fr-18-81-2015"ID-GBIF-Dataset="49a593d2-44ce-420d-a608-8533ec6745ac"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="039287BEFC55FFA5FFA9FA19FA6CF952"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="Goniatites eganensis Korn and Titus 2011"docType="treatment"docVersion="7"lastPageNumber="90"masterDocId="FFABFFC6FC5CFFACFFD5FFF5FFC9FF94"masterDocTitle="Late Viséan (late Mississippian) ammonoids from the Barnett Shale, Sierra Diablo Escarpment, Culberson County, Texas, USA"masterLastPageNumber="104"masterPageNumber="81"pageNumber="90"updateTime="1718152557931"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0">
<mods:titleid="386A565A036CB479FE7A38185A589BCD">Late Viséan (late Mississippian) ammonoids from the Barnett Shale, Sierra Diablo Escarpment, Culberson County, Texas, USA</mods:title>
<mods:namePartid="F0F563CF5BF6B1FB8C930BB7915A8FA4">Titus, A. L.</mods:namePart>
<mods:affiliationid="A1E0EF4BA230DB9E479BF862B621FF01">D. Korn & Grand Staircase-Escalante National Monument, 669 S. Highway 89 A, Kanab, UT 84741, USA</mods:affiliation>
<mods:affiliationid="BC587CBB928C5C4E84727DABAF862847">J. E. Harrell & Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43,</mods:affiliation>
<mods:namePartid="AA794D08550A6E6CE72EE2E4EDCE9E9B">Lambert, L. L.</mods:namePart>
<mods:affiliationid="5C3F2C5951DD409D6AAAEB79546048FA">Department of Geological Sciences, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA</mods:affiliation>
<taxonomicNameid="4C3B4D2BFC55FFA5FFA9FA19FD9FF990"ID-CoL="3GVKB"authority="Korn and Titus, 2011"authorityName="Korn and Titus"authorityYear="2011"box="[124,598,1516,1540]"class="Cephalopoda"family="Goniatitidae"genus="Goniatites"kingdom="Animalia"order="Goniatitida"pageId="9"pageNumber="90"phylum="Mollusca"rank="species"species="eganensis">
<bibRefCitationid="EFAA4B59FC55FFA5FEB0FA19FD9FF990"author="Korn, D. & Titus, A. L."box="[357,598,1516,1540]"pageId="9"pageNumber="90"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>
(
<figureCitationid="13002A2DFC55FFA5FDB1FA19FD6CF990"box="[612,677,1516,1540]"captionStart="Figure 8"captionStartId="10.[124,191,989,1011]"captionTargetBox="[152,1434,177,950]"captionTargetId="figure-15@10.[150,1435,177,958]"captionTargetPageId="10"captionText="Figure 8. Goniatites eganensis Korn and Titus, 2011 from the Figure 2 Ranch section, Sierra Diablo. (a) Specimen NPL 68431 from bed 9 (sample OOTXCU-21b); × 1.0. (b) Specimen NPL 68471 from bed 9 (sample OOTXCU-21b); × 1.25. (c) Specimen NPL 68493 from bed 11 (sample OOTXCU-22); × 1.75. (d) Specimen NPL 68389 from bed 9 (sample OOTXCU-21a); × 2.5."figureDoi="http://doi.org/10.5281/zenodo.11585641"httpUri="https://zenodo.org/record/11585641/files/figure.png"pageId="9"pageNumber="90">Fig. 8</figureCitation>
<taxonomicNameid="4C3B4D2BFC55FFA5FF6CF9DEFD8AF9D6"authority="Korn and Titus"authorityName="Korn and Titus"authorityYear="2011"box="[185,579,1579,1603]"class="Cephalopoda"family="Goniatitidae"genus="Goniatites"kingdom="Animalia"order="Goniatitida"pageId="9"pageNumber="90"phylum="Mollusca"rank="species"species="eganensis">
<collectionCodeid="ED2AAE6DFC55FFA5FE8CF97EFE63F936"box="[345,426,1675,1698]"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="9"pageNumber="90"type="Museum">UMNH</collectionCode>
<specimenCodeid="DB9D9ED3FC55FFA5FE65F97EFDCDF936"box="[432,516,1675,1698]"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="9"pageNumber="90"type="Museum">IP 4021</specimenCode>
; illustrated by
<bibRefCitationid="EFAA4B59FC55FFA5FD48F97EFF30F956"author="Korn, D. & Titus, A. L."pageId="9"pageNumber="90"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>
conch diameter with narrow external lobe (0.55 of the external lobe depth; 1.25 of the ventrolateral saddle width), and moderately low median saddle (0.40 of the external lobe depth). External lobe V-shaped with narrow, V-shaped prongs; ventrolateral saddle subangular.
are selected to outline the morphology of the material from the Sierra Diablo. Unfortunately, inner whorls are largely recrystallized and thus do not contain solid information about the conch ontogeny.
<collectionCodeid="ED2AAE6DFC55FFA5FC15FBA4FC3BFBFC"box="[960,1010,1105,1128]"country="USA"httpUri="http://grbio.org/cool/q79f-q0gz"name="University of Texas at Austin"pageId="9"pageNumber="90"type="University or college">NPL</collectionCode>
conch diameter; it is representative for a larger growth stage (
<figureCitationid="13002A2DFC55FFA5FCABFB64FC19FB3C"box="[894,976,1169,1192]"captionStart="Figure 8"captionStartId="10.[124,191,989,1011]"captionTargetBox="[152,1434,177,950]"captionTargetId="figure-15@10.[150,1435,177,958]"captionTargetPageId="10"captionText="Figure 8. Goniatites eganensis Korn and Titus, 2011 from the Figure 2 Ranch section, Sierra Diablo. (a) Specimen NPL 68431 from bed 9 (sample OOTXCU-21b); × 1.0. (b) Specimen NPL 68471 from bed 9 (sample OOTXCU-21b); × 1.25. (c) Specimen NPL 68493 from bed 11 (sample OOTXCU-22); × 1.75. (d) Specimen NPL 68389 from bed 9 (sample OOTXCU-21a); × 2.5."figureDoi="http://doi.org/10.5281/zenodo.11585641"httpUri="https://zenodo.org/record/11585641/files/figure.png"pageId="9"pageNumber="90">Fig. 8a</figureCitation>
). The pachyconic conch (ww / dm = 0.67; uw / dm = 0.06) is very narrowly umbilicate and possesses a broadly rounded, wide venter and a steep umbilical wall. Parts of the specimen are covered with shell remains. These show fine and crenulated growth lines, which extend with weakly biconvex course across flanks and venter, forming equally high dorsolateral and ventrolateral projections and shallow lateral and ventral sinuses.
<collectionCodeid="ED2AAE6DFC55FFA5FBEFFA65FBA5FA33"box="[1082,1132,1424,1447]"country="USA"httpUri="http://grbio.org/cool/q79f-q0gz"name="University of Texas at Austin"pageId="9"pageNumber="90"type="University or college">NPL</collectionCode>
dm) shows very similar conch proportions but differs in the slightly coarser, irregularly spaced growth lines (
<figureCitationid="13002A2DFC55FFA5FB4EFA25FB27FA73"box="[1179,1262,1488,1511]"captionStart="Figure 8"captionStartId="10.[124,191,989,1011]"captionTargetBox="[152,1434,177,950]"captionTargetId="figure-15@10.[150,1435,177,958]"captionTargetPageId="10"captionText="Figure 8. Goniatites eganensis Korn and Titus, 2011 from the Figure 2 Ranch section, Sierra Diablo. (a) Specimen NPL 68431 from bed 9 (sample OOTXCU-21b); × 1.0. (b) Specimen NPL 68471 from bed 9 (sample OOTXCU-21b); × 1.25. (c) Specimen NPL 68493 from bed 11 (sample OOTXCU-22); × 1.75. (d) Specimen NPL 68389 from bed 9 (sample OOTXCU-21a); × 2.5."figureDoi="http://doi.org/10.5281/zenodo.11585641"httpUri="https://zenodo.org/record/11585641/files/figure.png"pageId="9"pageNumber="90">Fig. 8b</figureCitation>
). Specimens
<collectionCodeid="ED2AAE6DFC55FFA5FA51FA25FA7FFA73"box="[1412,1462,1488,1511]"country="USA"httpUri="http://grbio.org/cool/q79f-q0gz"name="University of Texas at Austin"pageId="9"pageNumber="90"type="University or college">NPL</collectionCode>
<collectionCodeid="ED2AAE6DFC55FFA5FBF8FA1AFB96F992"box="[1069,1119,1519,1542]"country="USA"httpUri="http://grbio.org/cool/q79f-q0gz"name="University of Texas at Austin"pageId="9"pageNumber="90"type="University or college">NPL</collectionCode>
68389 (18.4 mm dm) are thickly pachyconic conchs with stronger depressed whorl cross section (
<figureCitationid="13002A2DFC55FFA5FCA7F9DAFC21F9D2"box="[882,1000,1583,1606]"captionStart="Figure 8"captionStartId="10.[124,191,989,1011]"captionTargetBox="[152,1434,177,950]"captionTargetId="figure-15@10.[150,1435,177,958]"captionTargetPageId="10"captionText="Figure 8. Goniatites eganensis Korn and Titus, 2011 from the Figure 2 Ranch section, Sierra Diablo. (a) Specimen NPL 68431 from bed 9 (sample OOTXCU-21b); × 1.0. (b) Specimen NPL 68471 from bed 9 (sample OOTXCU-21b); × 1.25. (c) Specimen NPL 68493 from bed 11 (sample OOTXCU-22); × 1.75. (d) Specimen NPL 68389 from bed 9 (sample OOTXCU-21a); × 2.5."figureDoi="http://doi.org/10.5281/zenodo.11585641"httpUri="https://zenodo.org/record/11585641/files/figure.png"pageId="9"pageNumber="90">Fig. 8c, d</figureCitation>
). The larger of the two possesses well-preserved shell ornament with biconvex, strongly crenulated growth lines. These form a shallow lateral sinus and a very shallow ventral sinus. The smaller of the two possesses weakly crenulated growth lines standing in wide distances.
