271 lines
28 KiB
XML
271 lines
28 KiB
XML
<document id="A3F64C86575B0DF0261BC15938789F15" ID-DOI="10.1206/0003-0090(2000)251<0001:LCCHAF>2.0.CO;2" ID-ISSN="0003-0090" ID-Zenodo-Dep="5350429" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630205073875" checkinUser="felipe" docAuthor="KENNEDY, W. J., LANDMAN, N. H., COBBAN, W. A. & SCOTT, G. R." docDate="2000" docId="4B7D8E21666DFFE293FAFB2E8212FAD5" docLanguage="en" docName="B251.pdf" docOrigin="Bulletin of the American Museum of Natural History 2000 (251)" docSource="http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0090(2000)251%3C0001%3ALCCHAF%3E2.0.CO%3B2" docStyle="DocumentStyle:2B34016C1EBFE58B07368F9517618743.3:BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleId="2B34016C1EBFE58B07368F9517618743" docStyleName="BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleVersion="3" docTitle="Solenoceras KENNEDY & LANDMAN & COBBAN & SCOTT 2000, n. sp." docType="treatment" docVersion="3" lastPageNumber="80" masterDocId="B744F6596620FFAD911BFFA0816AFFD4" masterDocTitle="Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States" masterLastPageNumber="88" masterPageNumber="1" pageNumber="78" updateTime="1699184587530" updateUser="plazi" zenodo-license-document="CC-BY-4.0">
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<mods:titleInfo id="A749DBFB6DE690004874A2C6C7EB42B1">
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<mods:title id="12372E9530E8EA9E6794B2F41BA4375B">Late Campanian (Cretaceous) Heteromorph Ammonites From The Western Interior Of The United States</mods:title>
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<mods:name id="EC30C94FC3B16DFA70AEBF202807AA44" type="personal">
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<mods:namePart id="A0AB5871FA6F0F8C5D3654925F3B03EF">KENNEDY, W. J.</mods:namePart>
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<mods:namePart id="D8DCB5048ADF6977237CA10EFF8D5A0D">LANDMAN, N. H.</mods:namePart>
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<mods:namePart id="5F0B3F79A4ED5A4E4989D4CC43D24347">COBBAN, W. A.</mods:namePart>
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</mods:name>
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<mods:name id="B5596B3A05106685DC8A64DA86D51E26" type="personal">
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<mods:roleTerm id="DEFD6D0FF89CA4F970A16A4236C29C53">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="E5C540184F118EDF569B06E4CA5A1A00">SCOTT, G. R.</mods:namePart>
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<mods:typeOfResource id="8DC44A2D19E4F6AD27E04CC789C514EB">text</mods:typeOfResource>
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<mods:title id="E59DA27672D44D57036570779277FE0A">Bulletin of the American Museum of Natural History</mods:title>
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<mods:part id="39843F29A9BCC2BCFEE73DCD3E3B241C">
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<mods:date id="6776B1B51C9C56D92D50E1893092224C">2000</mods:date>
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<mods:number id="B9E24CAEE9172CC3286CC4FF4368424C">2000-04-10</mods:number>
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<mods:number id="8121AB628DCEA68FC9AE454CFEE311D9">2000</mods:number>
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<mods:number id="A25CF78D735DB594E15B1BA3303E5364">251</mods:number>
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<mods:url id="2AB988D8A942E11797B31DD30783862B">http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0090(2000)251%3C0001%3ALCCHAF%3E2.0.CO%3B2</mods:url>
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<mods:identifier id="A08132248F3C7096A8D4C9DE2F893121" type="DOI">10.1206/0003-0090(2000)251<0001:LCCHAF>2.0.CO;2</mods:identifier>
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<mods:identifier id="72C7E821A7E5BE2B14968D23A792C5DD" type="ISSN">0003-0090</mods:identifier>
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<mods:identifier id="551846CFF92B5829C2E0D729AD3523E6" type="Zenodo-Dep">5350429</mods:identifier>
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<treatment id="4B7D8E21666DFFE293FAFB2E8212FAD5" LSID="urn:lsid:plazi:treatment:4B7D8E21666DFFE293FAFB2E8212FAD5" httpUri="http://treatment.plazi.org/id/4B7D8E21666DFFE293FAFB2E8212FAD5" lastPageId="79" lastPageNumber="80" pageId="77" pageNumber="78">
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<subSubSection id="8BCE6CBC666DFFE093FAFB2E85F7FA49" pageId="77" pageNumber="78" type="nomenclature">
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<paragraph id="C36B3F37666DFFE093FAFB2E85D3FB77" blockId="77.[737,1209,1166,1187]" box="[737,1209,1166,1187]" pageId="77" pageNumber="78">
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<heading id="9823885B666DFFE093FAFB2E85D3FB77" box="[737,1209,1166,1187]" fontSize="9" level="2" pageId="77" pageNumber="78" reason="6">
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<emphasis id="F1A0E325666DFFE093FAFB2E820DFB77" box="[737,871,1166,1187]" italics="true" pageId="77" pageNumber="78">
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<taxonomicName id="04D444B4666DFFE093FAFB2E8209FB77" ID-CoL="7JF2" authority="KENNEDY & LANDMAN & COBBAN & SCOTT, 2000" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[737,867,1166,1187]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="77" pageNumber="78" phylum="Mollusca" rank="genus" status="sp. nov.">Solenoceras</taxonomicName>
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,
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</emphasis>
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<taxonomicNameLabel id="EA935E5E666DFFE0926BFB2E82C1FB77" box="[880,939,1166,1187]" pageId="77" pageNumber="78" rank="species">n. sp.</taxonomicNameLabel>
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Gill et al., 1970: 22, 23.
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</heading>
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</paragraph>
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<paragraph id="C36B3F37666DFFE093E5FB1985F7FA49" blockId="77.[737,1266,1209,1731]" pageId="77" pageNumber="78">
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TYPES: The
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<typeStatus id="1C6F8195666DFFE09283FB198294FB04" box="[920,1022,1209,1232]" pageId="77" pageNumber="78" type="holotype">holotype</typeStatus>
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is USNM 482530, from the Rock
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<collectingRegion id="0110F1D5666DFFE092B2FB768280FB39" box="[937,1002,1238,1261]" country="Nigeria" name="Rivers" pageId="77" pageNumber="78">River</collectingRegion>
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Formation at USGS Mesozoic locality D
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<quantity id="042C92D2666DFFE092C3FB54855CFADF" box="[984,1078,1268,1291]" metricMagnitude="1" metricUnit="m" metricValue="3.5229799999999996" pageId="77" pageNumber="78" unit="in" value="1387.0">1387 in</quantity>
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the NW
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<emphasis id="F1A0E325666DFFE095BFFB5385D2FADF" bold="true" box="[1188,1208,1267,1291]" pageId="77" pageNumber="78">¼</emphasis>
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sec. 16, T.
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<specimenCount id="D5D2F4BE666DFFE09236FAB18218FAFC" box="[813,882,1297,1320]" pageId="77" pageNumber="78" type="generic">20 N.</specimenCount>
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, R.
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<specimenCount id="D5D2F4BE666DFFE092BEFAB18287FAFC" box="[933,1005,1297,1320]" pageId="77" pageNumber="78" type="generic">76 W.</specimenCount>
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, Albany County,
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<collectingRegion id="0110F1D5666DFFE095A4FAB18241FA91" country="United States of America" name="Wyoming" pageId="77" pageNumber="78">Wyoming</collectingRegion>
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(fig. 2, loc. 27).
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<typeStatus id="1C6F8195666DFFE092ECFA8E8502FA91" box="[1015,1128,1326,1349]" pageId="77" pageNumber="78" type="paratype">Paratypes</typeStatus>
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are USNM 482531–482538, 482823–482826, from the same locality, and 482539, from USGS Mesozoic locality D359 (fig. 2, loc. 26).
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</paragraph>
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</subSubSection>
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<subSubSection id="8BCE6CBC666DFFE093E5FA0485EDFA6F" box="[766,1159,1444,1467]" pageId="77" pageNumber="78" type="etymology">
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<paragraph id="C36B3F37666DFFE093E5FA0485EDFA6F" blockId="77.[737,1266,1209,1731]" box="[766,1159,1444,1467]" pageId="77" pageNumber="78">
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ETYMOLOGY: Latin,
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<emphasis id="F1A0E325666DFFE092F1FA048520FA6F" box="[1002,1098,1444,1467]" italics="true" pageId="77" pageNumber="78">
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<taxonomicName id="04D444B4666DFFE092F1FA04852CFA6F" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[1002,1094,1444,1467]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="77" pageNumber="78" phylum="Mollusca" rank="species" species="elegans">elegans</taxonomicName>
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,
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</emphasis>
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fine.
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</paragraph>
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||
</subSubSection>
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<subSubSection id="8BCE6CBC666DFFE093E5FA61853DF9C7" pageId="77" pageNumber="78" type="materials_examined">
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<paragraph id="C36B3F37666DFFE093E5FA61853DF9C7" blockId="77.[737,1266,1209,1731]" pageId="77" pageNumber="78">
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MATERIAL: About 200 well-preserved fragments from the
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<typeStatus id="1C6F8195666DFFE092B3FA7E82B0FA21" box="[936,986,1502,1525]" pageId="77" pageNumber="78">type</typeStatus>
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locality plus about 30 fragments from other localities.
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</paragraph>
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</subSubSection>
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<subSubSection id="8BCE6CBC666DFFE093E5F9B98273F971" pageId="77" pageNumber="78" type="diagnosis">
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<paragraph id="C36B3F37666DFFE093E5F9B98273F971" blockId="77.[737,1266,1209,1731]" pageId="77" pageNumber="78">
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DIAGNOSIS: A long, slender species of
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<taxonomicName id="04D444B4666DFFE095D1F9B98238F99A" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="77" pageNumber="78" phylum="Mollusca" rank="genus">
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<emphasis id="F1A0E325666DFFE095D1F9B98238F99A" italics="true" pageId="77" pageNumber="78">Solenoceras</emphasis>
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</taxonomicName>
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with a few constrictions near the adapical end and one near the aperture. Ribs are usually closely spaced with a rib index of 5.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="8BCE6CBC666DFFE293E5F90C82D8FD56" lastPageId="79" lastPageNumber="80" pageId="77" pageNumber="78" type="description">
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<paragraph id="C36B3F37666DFFE093E5F90C859BF917" blockId="77.[737,1266,1209,1731]" box="[766,1265,1708,1731]" pageId="77" pageNumber="78">
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DESCRIPTION: The
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<typeStatus id="1C6F8195666DFFE092FCF90C8527F917" box="[999,1101,1708,1731]" pageId="77" pageNumber="78" type="holotype">holotype</typeStatus>
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(fig. 61DD)
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||
</paragraph>
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<caption id="97AB6FBF666EFFE391ACFBF5802DFB6E" ID-DOI="http://doi.org/10.5281/zenodo.5350558" ID-Zenodo-Dep="5350558" httpUri="https://zenodo.org/record/5350558/files/figure.png" pageId="78" pageNumber="79" startId="78.[183,221,1109,1130]" targetBox="[240,605,180,1082]" targetPageId="78">
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<paragraph id="C36B3F37666EFFE391ACFBF5802DFB6E" blockId="78.[157,685,1109,1210]" pageId="78" pageNumber="79">
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Fig. 65. Histogram showing range in diameters of the elbows of 45 specimens of
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<emphasis id="F1A0E325666EFFE39336FBD08199FB74" italics="true" pageId="78" pageNumber="79">
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||
<taxonomicName id="04D444B4666EFFE39336FBD08185FB74" authority="KENNEDY & LANDMAN & COBBAN & SCOTT, 2000" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="78" pageNumber="79" phylum="Mollusca" rank="species" species="elegans" status="sp. nov.">Solenoceras elegans</taxonomicName>
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,
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</emphasis>
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<taxonomicNameLabel id="EA935E5E666EFFE391E4FB2B8057FB74" box="[255,317,1163,1184]" pageId="78" pageNumber="79" rank="species">n. sp.</taxonomicNameLabel>
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, USGS Mesozoic locality D1387 (fig. 2, loc. 27).
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</paragraph>
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</caption>
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<paragraph id="C36B3F37666EFFE39186FB548562F9C0" blockId="78.[157,686,1268,1731]" lastBlockId="78.[733,1262,1417,1731]" pageId="78" pageNumber="79">
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consists of two tightly appressed, slightly curved limbs
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<quantity id="042C92D2666EFFE39053FAB180F5FAFC" box="[328,415,1297,1320]" metricMagnitude="-2" metricUnit="m" metricValue="6.9" pageId="78" pageNumber="79" unit="mm" value="69.0">69 mm</quantity>
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long, connected by a narrow elbow
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<quantity id="042C92D2666EFFE39053FA8E80C9FA91" box="[328,419,1326,1349]" metricMagnitude="-3" metricUnit="m" metricValue="9.6" pageId="78" pageNumber="79" unit="mm" value="9.6">9.6 mm</quantity>
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in diameter. Owing to cover of nacreous shell material on nearly all of the smaller limb, the position of the base of the body chamber is not recognizable. The small end of the smaller limb is broken off at a limb height of about
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<quantity id="042C92D2666EFFE390CEFA618375FA0C" box="[469,543,1473,1496]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="78" pageNumber="79" unit="mm" value="2.0">2 mm</quantity>
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. The height of the larger limb is about
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<quantity id="042C92D2666EFFE390E2FA7E8333FA21" box="[505,601,1502,1525]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="78" pageNumber="79" unit="mm" value="6.5">6.5 mm</quantity>
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at the aperture. Both limbs have stout cross sections. Ribs are straight, narrow, and single; each bears a small nodate tubercle at the margin of the flattened venter. Short, sharp spines are preserved near the aperture, where they arise from tubercles. Ribs are prorsiradiate on the smaller limb and on the older part of the elbow; they are rectiradiate on the middle of the elbow, and slightly rursiradiate on the younger part of the elbow and on the larger limb. The rib index is 5. The aperture is bordered by a thin rib.
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||
</paragraph>
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||
<caption id="97AB6FBF666EFFE393ECFAB08206FA8E" ID-DOI="http://doi.org/10.5281/zenodo.5350561" ID-Zenodo-Dep="5350561" httpUri="https://zenodo.org/record/5350561/files/figure.png" pageId="78" pageNumber="79" startId="78.[759,797,1296,1317]" targetBox="[889,1103,180,1270]" targetPageId="78">
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||
<paragraph id="C36B3F37666EFFE393ECFAB08206FA8E" blockId="78.[733,1262,1296,1370]" pageId="78" pageNumber="79">
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Fig. 66. Restoration of
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<emphasis id="F1A0E325666EFFE39510FAB08587FAF1" box="[1035,1261,1296,1317]" italics="true" pageId="78" pageNumber="79">
|
||
<taxonomicName id="04D444B4666EFFE39510FAB08583FAF1" authority="KENNEDY & LANDMAN & COBBAN & SCOTT, 2000" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[1035,1257,1296,1317]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="78" pageNumber="79" phylum="Mollusca" rank="species" species="elegans" status="sp. nov.">Solenoceras elegans</taxonomicName>
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,
|
||
</emphasis>
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||
<taxonomicNameLabel id="EA935E5E666EFFE393C6FA8B8271FA94" box="[733,795,1323,1344]" pageId="78" pageNumber="79" rank="species">n. sp.</taxonomicNameLabel>
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Stipple board drawing by John R. Stacy. Figure is ×2.
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</paragraph>
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||
</caption>
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||
<paragraph id="C36B3F37666EFFE393E1F9BA8278F917" blockId="78.[733,1262,1417,1731]" pageId="78" pageNumber="79">
|
||
Forty-five specimens from USGS Mesozoic locality D1387 have their elbows preserved. The diameters of the elbows are summarized in figure 65. The bulk of the specimens have elbow diameters from
|
||
<quantity id="042C92D2666EFFE39596F92F8264F917" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="78" pageNumber="79" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">8 to 10 mm</quantity>
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||
.
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</paragraph>
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||
<caption id="97AB6FBF666FFFE291A0FE2B80F1FDF1" ID-DOI="http://doi.org/10.5281/zenodo.5350563" ID-Zenodo-Dep="5350563" httpUri="https://zenodo.org/record/5350563/files/figure.png" pageId="79" pageNumber="80" startId="79.[187,225,395,416]" targetBox="[217,634,177,372]" targetPageId="79">
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||
<paragraph id="C36B3F37666FFFE291A0FE2B80F1FDF1" blockId="79.[161,689,395,549]" pageId="79" pageNumber="80">
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||
Fig. 67. Suture of
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||
<emphasis id="F1A0E325666FFFE2908AFE2B831AFE74" box="[401,624,395,416]" italics="true" pageId="79" pageNumber="80">
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||
<taxonomicName id="04D444B4666FFFE2908AFE2B8301FE74" authority="KENNEDY & LANDMAN & COBBAN & SCOTT, 2000" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[401,619,395,416]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans" status="sp. nov.">Solenoceras elegans</taxonomicName>
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,
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||
</emphasis>
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<taxonomicNameLabel id="EA935E5E666FFFE29363FE2B83DBFE74" box="[632,689,395,416]" pageId="79" pageNumber="80" rank="species">n. sp.</taxonomicNameLabel>
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E is the external lobe, L is the lateral lobe, U is the umbilical lobe, and I is the internal lobe. The heavy, straight line marks the middle of the venter. USNM 482825, USGS Mesozoic locality D1387 (fig. 2, loc. 27).
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||
</paragraph>
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||
</caption>
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<paragraph id="C36B3F37666FFFE291A5FDC5805EFB13" blockId="79.[161,690,613,1281]" pageId="79" pageNumber="80">
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||
One of the smallest individuals (USNM 482823, not illustrated) in the collection is a limb
|
||
<quantity id="042C92D2666FFFE291F9FD008027FD63" box="[226,333,672,695]" metricMagnitude="-2" metricUnit="m" metricValue="3.05" pageId="79" pageNumber="80" unit="mm" value="30.5">30.5 mm</quantity>
|
||
long that has terminal whorl heights of 0.4 and
|
||
<quantity id="042C92D2666FFFE29099FD1D808AFD00" box="[386,480,701,724]" metricMagnitude="-3" metricUnit="m" metricValue="2.3" pageId="79" pageNumber="80" unit="mm" value="2.3">2.3 mm</quantity>
|
||
. Beginning at the small end, the limb forms a gentle curve for about
|
||
<quantity id="042C92D2666FFFE291F5FD58805DFCDB" box="[238,311,760,783]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="79" pageNumber="80" unit="mm" value="8.0">8 mm</quantity>
|
||
and then becomes straight for the rest of the limb. Given the small height of the limb at its smaller end, only a few millimeters of limb and ammonitella can be missing. The ornament is lacking except for a few widely spaced constrictions. Another juvenile limb (USNM 482824, not illustrat- ed),
|
||
<quantity id="042C92D2666FFFE291C2FC65805DFC08" box="[217,311,965,988]" metricMagnitude="-3" metricUnit="m" metricValue="5.5" pageId="79" pageNumber="80" unit="mm" value="5.5">5.5 mm</quantity>
|
||
long, that arises from the ammonitella, is
|
||
<quantity id="042C92D2666FFFE2905BFC4280F7FC2D" box="[320,413,994,1017]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="79" pageNumber="80" unit="mm" value="0.5">0.5 mm</quantity>
|
||
high at the larger end and forms a gentle curve. This limb is also smooth except for a few weak constrictions. These specimens as well as other very small limbs in the collection (USGS Mesozoic locality D1387) allow restoration of the early growth stages of
|
||
<taxonomicName id="04D444B4666FFFE29076FB338337FB7E" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[365,605,1171,1194]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans">
|
||
<emphasis id="F1A0E325666FFFE29076FB338337FB7E" box="[365,605,1171,1194]" italics="true" pageId="79" pageNumber="80">Solenoceras elegans</emphasis>
|
||
</taxonomicName>
|
||
shown in figure 66.
|
||
</paragraph>
|
||
<paragraph id="C36B3F37666FFFE291A5FB6D82BCFE8B" blockId="79.[161,690,613,1281]" lastBlockId="79.[737,1266,182,1281]" pageId="79" pageNumber="80">
|
||
The ornament of the specimens from USGS Mesozoic locality D1387 (fig. 61R– CC, EE–GG) is much like that of the
|
||
<typeStatus id="1C6F8195666FFFE295AFFF16827DFF3F" pageId="79" pageNumber="80" type="holotype">holotype</typeStatus>
|
||
. Ribs are fairly strong, narrow, and closely spaced, and cross the venter transversely, where some may be looped between opposite tubercles. The ornament remains strong on the elbow.
|
||
</paragraph>
|
||
<paragraph id="C36B3F37666FFFE293E5FEC58235FDDA" blockId="79.[737,1266,182,1281]" pageId="79" pageNumber="80">Several specimens have the aperture preserved. A constriction is bordered by a high adoral rib, followed by a weak rib, and then by the aperture (fig. 66). The aperture has the form of the ribs and a broad convex dorsal projection.</paragraph>
|
||
<paragraph id="C36B3F37666FFFE293E5FDB482D8FD56" blockId="79.[737,1266,182,1281]" pageId="79" pageNumber="80">The suture is typical of the genus. The lobes and saddles are bifid and of nearly equal size except for the narrow, trifid internal lobe (fig. 67).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="8BCE6CBC666FFFE293E5FD288212FAD5" pageId="79" pageNumber="80" type="discussion">
|
||
<paragraph id="C36B3F37666FFFE293E5FD2882D1FC16" blockId="79.[737,1266,182,1281]" pageId="79" pageNumber="80">
|
||
DISCUSSION:
|
||
<emphasis id="F1A0E325666FFFE29283FD2885FCFD4B" box="[920,1174,648,671]" italics="true" pageId="79" pageNumber="80">
|
||
<taxonomicName id="04D444B4666FFFE29283FD2885FBFD4B" authority="KENNEDY & LANDMAN & COBBAN & SCOTT, 2000" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[920,1169,648,671]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans" status="sp. nov.">Solenoceras elegans</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
<taxonomicNameLabel id="EA935E5E666FFFE295BFFD288581FD4B" box="[1188,1259,648,671]" pageId="79" pageNumber="80" rank="species">n. sp.</taxonomicNameLabel>
|
||
, has a long body chamber and ribbing much like that of
|
||
<emphasis id="F1A0E325666FFFE29270FD6285C8FD0D" box="[875,1186,706,729]" italics="true" pageId="79" pageNumber="80">
|
||
<taxonomicName id="04D444B4666FFFE29270FD6285F4FD0D" authority="KENNEDY & LANDMAN & COBBAN & SCOTT, 2000" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[875,1182,706,729]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="bearpawense" status="sp. nov.">Solenoceras bearpawense</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
<taxonomicNameLabel id="EA935E5E666FFFE295B0FD628586FD0D" box="[1195,1260,706,729]" pageId="79" pageNumber="80" rank="species">n. sp.</taxonomicNameLabel>
|
||
, but
|
||
<taxonomicName id="04D444B4666FFFE29203FD7F82F3FD22" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[792,921,735,758]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans">
|
||
<emphasis id="F1A0E325666FFFE29203FD7F82F3FD22" box="[792,921,735,758]" italics="true" pageId="79" pageNumber="80">S. elegans</emphasis>
|
||
</taxonomicName>
|
||
lacks constrictions on the small limb. The long body chamber and density of ribs of
|
||
<taxonomicName id="04D444B4666FFFE292B8FCBA8211FC99" authority="(Shumard, 1861)" baseAuthorityName="Shumard" baseAuthorityYear="1861" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="texanum">
|
||
<emphasis id="F1A0E325666FFFE292B8FCBA85CBFCE5" box="[931,1185,794,817]" italics="true" pageId="79" pageNumber="80">Solenoceras texanum</emphasis>
|
||
(Shumard, 1861)
|
||
</taxonomicName>
|
||
, as illustrated by Stephenson (1941: pl. 77, figs. 4, 5), resemble those of
|
||
<emphasis id="F1A0E325666FFFE293FAFCD18208FC5C" box="[737,866,881,904]" italics="true" pageId="79" pageNumber="80">
|
||
<taxonomicName id="04D444B4666FFFE293FAFCD18237FC5C" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[737,861,881,904]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans">S. elegans</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
but the
|
||
<collectingRegion id="0110F1D5666FFFE292D2FCD08566FC53" box="[969,1036,880,903]" country="United States of America" name="Texas" pageId="79" pageNumber="80">Texas</collectingRegion>
|
||
species has a rectangular cross section as well as constrictions on the small limb.
|
||
</paragraph>
|
||
<paragraph id="C36B3F37666FFFE293E5FC688212FAD5" blockId="79.[737,1266,182,1281]" pageId="79" pageNumber="80">
|
||
OCCURRENCE:
|
||
<taxonomicName id="04D444B4666FFFE292B9FC6885FBFC0B" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[930,1169,968,991]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans">
|
||
<emphasis id="F1A0E325666FFFE292B9FC6885FBFC0B" box="[930,1169,968,991]" italics="true" pageId="79" pageNumber="80">Solenoceras elegans</emphasis>
|
||
</taxonomicName>
|
||
is fairly common in part of the Rock
|
||
<collectingRegion id="0110F1D5666FFFE2952AFC458518FC28" box="[1073,1138,997,1020]" country="Nigeria" name="Rivers" pageId="79" pageNumber="80">River</collectingRegion>
|
||
Formation in southeastern
|
||
<collectingRegion id="0110F1D5666FFFE29287FBA28578FBCD" box="[924,1042,1026,1049]" country="United States of America" name="Wyoming" pageId="79" pageNumber="80">Wyoming</collectingRegion>
|
||
, where the species is associated with
|
||
<emphasis id="F1A0E325666FFFE292D2FBBF8598FBE2" box="[969,1266,1055,1078]" italics="true" pageId="79" pageNumber="80">
|
||
<taxonomicName id="04D444B4666FFFE292D2FBBF8584FBE2" baseAuthorityName="Whitfield" baseAuthorityYear="1877" box="[969,1262,1055,1078]" class="Cephalopoda" family="Nostoceratidae" genus="Didymoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="stevensoni">Didymoceras stevensoni</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
At many localities in
|
||
<collectingRegion id="0110F1D5666FFFE292EFFB9C8509FB87" box="[1012,1123,1084,1107]" country="United States of America" name="Colorado" pageId="79" pageNumber="80">Colorado</collectingRegion>
|
||
,
|
||
<taxonomicName id="04D444B4666FFFE2956EFB9C859BFB87" authorityName="KENNEDY & LANDMAN & COBBAN & SCOTT" authorityYear="2000" box="[1141,1265,1084,1107]" class="Cephalopoda" family="Diplomoceratidae" genus="Solenoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="elegans">
|
||
<emphasis id="F1A0E325666FFFE2956EFB9C859BFB87" box="[1141,1265,1084,1107]" italics="true" pageId="79" pageNumber="80">S. elegans</emphasis>
|
||
</taxonomicName>
|
||
ranges upward into the zone of
|
||
<emphasis id="F1A0E325666FFFE2957BFBF98257FB59" italics="true" pageId="79" pageNumber="80">
|
||
<taxonomicName id="04D444B4666FFFE2957BFBF98253FB59" baseAuthorityName="Whitfield" baseAuthorityYear="1877" class="Cephalopoda" family="Nostoceratidae" genus="Exiteloceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="jenneyi">Exiteloceras jenneyi</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
BHMNH has
|
||
<specimenCount id="D5D2F4BE666FFFE292FEFBD685E8FB59" box="[997,1154,1142,1165]" pageId="79" pageNumber="80" type="generic">10 specimens</specimenCount>
|
||
collected by Howard Ehrle from the
|
||
<taxonomicName id="04D444B4666FFFE2953AFB3385D5FB7E" baseAuthorityName="Whitfield" baseAuthorityYear="1877" box="[1057,1215,1171,1194]" class="Cephalopoda" family="Nostoceratidae" genus="Didymoceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="stevensoni">
|
||
<emphasis id="F1A0E325666FFFE2953AFB3385D5FB7E" box="[1057,1215,1171,1194]" italics="true" pageId="79" pageNumber="80">D. stevensoni</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="04D444B4666FFFE293FAFB10823CFB13" baseAuthorityName="Whitfield" baseAuthorityYear="1877" box="[737,854,1200,1223]" class="Cephalopoda" family="Nostoceratidae" genus="Exiteloceras" kingdom="Animalia" order="Ammonoidea" pageId="79" pageNumber="80" phylum="Mollusca" rank="species" species="jenneyi">
|
||
<emphasis id="F1A0E325666FFFE293FAFB10823CFB13" box="[737,854,1200,1223]" italics="true" pageId="79" pageNumber="80">E. jenneyi</emphasis>
|
||
</taxonomicName>
|
||
zones of the Pierre Shale of Carter County,
|
||
<collectingRegion id="0110F1D5666FFFE29251FB6D82DBFB30" box="[842,945,1229,1252]" country="United States of America" name="Montana" pageId="79" pageNumber="80">Montana</collectingRegion>
|
||
(N. Larson, written commun., 1994).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |