240 lines
27 KiB
XML
240 lines
27 KiB
XML
<document id="41AF714FA5835E760B260AF072DF193E" ID-CLB-Dataset="7629" ID-DOI="10.1206/0003-0090.427.1.1" ID-GBIF-Dataset="3dcf53e6-a669-4856-8a9d-0aec244e8dbe" ID-ISSN="0003-0090" ID-Zenodo-Dep="4613615" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1615996768328" checkinUser="felipe" docAuthor="Landman, Neil H., Kennedy, W. James, Larson, Neal L., Grier, Joyce C., Grier, James W. & Linn, Tom" docDate="2019" docId="651BDA298C25A305FCBF70E78FA513C3" docLanguage="en" docName="BulAmeMusNatHis.2019.427.1-72.pdf.imf" docOrigin="Bulletin of the American Museum of Natural History 2019 (427)" docSource="https://bioone.org/journals/bulletin-of-the-american-museum-of-natural-history/volume-2019/issue-427/0003-0090.427.1.1/Description-of-Two-Species-of-Hoploscaphites-Ammonoidea--Ancyloceratina-from/10.1206/0003-0090.427.1.1.full" docStyle="DocumentStyle:915933466F796C9C739DF4DB6B8DCFA6.9:BulAmeMusNatHis.2011-.journal_article.1cover.type1" docStyleId="915933466F796C9C739DF4DB6B8DCFA6" docStyleName="BulAmeMusNatHis.2011-.journal_article.1cover.type1" docStyleVersion="9" docTitle="Hoploscaphites macer Landman & Kennedy & Larson & Grier & Grier & Linn 2019, n. sp." docType="treatment" docVersion="9" lastPageNumber="23" masterDocId="9922A2518C33A312FFA9722B8B26150B" masterDocTitle="Description Of Two Species Of Hoploscaphites (Ammonoidea: Ancyloceratina) From The Upper Cretaceous (Lower Maastrichtian) Of The U. S. Western Interior" masterLastPageNumber="72" masterPageNumber="1" pageNumber="22" updateTime="1698933792909" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:titleInfo id="262D392574F63E77EDDA4DDF4A2CF231">
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<mods:title id="B41A5CBFDF9D84657DE2F631D1860BCD">Description Of Two Species Of Hoploscaphites (Ammonoidea: Ancyloceratina) From The Upper Cretaceous (Lower Maastrichtian) Of The U. S. Western Interior</mods:title>
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<mods:name id="946547F4B5341DAD68BBB5BF26C1E632" type="personal">
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<mods:roleTerm id="C90251432F402B57913C93BBFA971CEB">Author</mods:roleTerm>
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<mods:namePart id="13F3CCE975676864E9EAC4247EDF96D2">Landman, Neil H.</mods:namePart>
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<mods:affiliation id="B9918199172D531E9F9ECBC52A308DC9">Division of Paleontology (Invertebrates), American Museum of Natural History, New York</mods:affiliation>
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</mods:name>
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<mods:roleTerm id="9948DB97166744F96B403DAC035E67F0">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="DBD25FE02ACB7763CC5FDA288BDCF669">Kennedy, W. James</mods:namePart>
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<mods:affiliation id="75B3DAF206C91C27E8DA47A2787AEC55">Oxford University Museum of Natural History, Oxford</mods:affiliation>
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</mods:name>
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<mods:name id="4CC12E993F4D6B66156B085DB646CE4A" type="personal">
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<mods:roleTerm id="B89D6C6C8E583E009D9636FEF29F47F4">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="2059D3A20DDAE51280E48C2A1C10B1DB">Larson, Neal L.</mods:namePart>
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<mods:affiliation id="549B832977ADAD61AD0D3FE77F2E9442">Larson Paleontology Unlimited, Keystone, South Dakota</mods:affiliation>
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</mods:name>
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<mods:name id="04D56A7B7F4E7F70E03CD104092FEE1E" type="personal">
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<mods:roleTerm id="E3A178E06518B2D61E1A5E160E6BE274">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="A9AFED05F3DF1D4FA650A750F9CBCE17">Grier, Joyce C.</mods:namePart>
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</mods:name>
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<mods:name id="C7B8E99CACC701749BC0F42C4B66B694" type="personal">
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<mods:roleTerm id="3F92AA72D8324436C55C73D30251E93A">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="9933FAAE64E1CF191370E021DB1ECFB1">Grier, James W.</mods:namePart>
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<mods:affiliation id="01FEF41B0D4EF4F90A2030DFDA8102CE">Department of Biological Sciences, North Dakota State University, Fargo</mods:affiliation>
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<mods:namePart id="0C7C7EE6B3F07FA177D37774F9CD844F">Linn, Tom</mods:namePart>
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<mods:typeOfResource id="048D514285D8AC184A9D6E9E542D3020">text</mods:typeOfResource>
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<mods:title id="B7D7A14F872A62F6D043302F2DFCB16A">Bulletin of the American Museum of Natural History</mods:title>
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<mods:part id="9E980881F8FA1806DE18C6705DE04263">
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<mods:date id="2CDAD8638A112325BF28F930AF5B338E">2019</mods:date>
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<mods:number id="F64F5C12C8C5B03ADA39305A289FA439">2019-02-22</mods:number>
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<mods:detail id="C00B54B65EEEA27D4B2808431FF52D21" type="volume">
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<mods:number id="761A0CEB7960303DD1221C920E13B764">2019</mods:number>
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<mods:number id="328A095492AFCD39F146E86FF8A25A8E">427</mods:number>
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<mods:start id="CB84A14316841AD39F6619CBD627550E">1</mods:start>
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<mods:end id="F9FA6ED94762E750298C35BC5A51185C">72</mods:end>
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<mods:url id="42683613558319FC62AB5F49B0AD7A46">https://bioone.org/journals/bulletin-of-the-american-museum-of-natural-history/volume-2019/issue-427/0003-0090.427.1.1/Description-of-Two-Species-of-Hoploscaphites-Ammonoidea--Ancyloceratina-from/10.1206/0003-0090.427.1.1.full</mods:url>
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</mods:location>
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<mods:classification id="E080746630A944C098CB6848E35E9F07">journal article</mods:classification>
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<mods:identifier id="916CCB9182EA244EB46FE74657A8F00C" type="CLB-Dataset">7629</mods:identifier>
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<mods:identifier id="6C9CA20CFFF508456056EDE52D15A24D" type="DOI">10.1206/0003-0090.427.1.1</mods:identifier>
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<mods:identifier id="15E4DFB994B2803F5C6C1D8AF5AE479D" type="GBIF-Dataset">3dcf53e6-a669-4856-8a9d-0aec244e8dbe</mods:identifier>
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<mods:identifier id="56B6E21A3F22DAD11B57EF569DEA5BBC" type="ISSN">0003-0090</mods:identifier>
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<mods:identifier id="2013D25C7A40FD73601F5E8B9FCC632C" type="Zenodo-Dep">4613615</mods:identifier>
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<treatment id="651BDA298C25A305FCBF70E78FA513C3" ID-DOI="http://doi.org/10.5281/zenodo.4631305" ID-GBIF-Taxon="180670911" ID-Zenodo-Dep="4631305" LSID="urn:lsid:plazi:treatment:651BDA298C25A305FCBF70E78FA513C3" httpUri="http://treatment.plazi.org/id/651BDA298C25A305FCBF70E78FA513C3" lastPageId="23" lastPageNumber="23" pageId="22" pageNumber="22">
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<subSubSection id="A5A838B48C25A304FCBF70E78F7417EF" box="[790,1106,716,741]" pageId="22" pageNumber="22" type="nomenclature">
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<paragraph id="ED0D6B3F8C25A304FCBF70E78F7417EF" blockId="22.[790,1106,716,741]" box="[790,1106,716,741]" pageId="22" pageNumber="22">
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<heading id="B645DC538C25A304FCBF70E78F7417EF" box="[790,1106,716,741]" centered="true" fontSize="9" level="2" pageId="22" pageNumber="22" reason="2">
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<emphasis id="DFC6B72D8C25A304FCBF70E78F3717EE" bold="true" box="[790,1041,716,741]" pageId="22" pageNumber="22">
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<taxonomicName id="2AB210BC8C25A304FCBF70E78F2C17EF" authority="Landman & Kennedy & Larson & Grier & Grier & Linn, 2019" authorityName="Landman & Kennedy & Larson & Grier & Grier & Linn" authorityYear="2019" box="[790,1034,716,740]" class="Cephalopoda" family="Scaphitidae" genus="Hoploscaphites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="22" pageNumber="22" phylum="Mollusca" rank="species" species="macer" status="sp. nov.">
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<emphasis id="DFC6B72D8C25A304FCBF70E78F2C17EF" bold="true" box="[790,1034,716,740]" italics="true" pageId="22" pageNumber="22">Hoploscaphites macer</emphasis>
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</taxonomicName>
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,
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</emphasis>
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<taxonomicNameLabel id="C4F50A568C25A304FBB170E68F7417EF" box="[1048,1106,717,740]" pageId="22" pageNumber="22" rank="species">n. sp.</taxonomicNameLabel>
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</heading>
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="A5A838B48C25A304FD6970D58F8E161D" box="[704,1192,766,791]" pageId="22" pageNumber="22" type="description">
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<paragraph id="ED0D6B3F8C25A304FD6970D58F8E161D" blockId="22.[704,1192,766,791]" box="[704,1192,766,791]" pageId="22" pageNumber="22">
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<heading id="B645DC538C25A304FD6970D58F8E161D" box="[704,1192,766,791]" centered="true" fontSize="9" level="2" pageId="22" pageNumber="22" reason="2">
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<figureCitation id="758977BA8C25A304FD6970D58871161D" box="[704,855,766,791]" captionStart="FIGURE 8" captionStartId="15.[107,191,1524,1545]" captionTargetBox="[107,1211,224,1498]" captionTargetId="figure-9@15.[107,1211,224,1498]" captionTargetPageId="15" captionText="FIGURE 8. A, B. Unpaired ventral muscle scar (arrow) just adoral of the last suture, Hoploscaphites macer, microconch, AMNH 69736, AMNH loc. 3921, upper Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. C. Apertural view of dorsal projection (arrow), Hoploscaphites criptonodosus (Riccardi, 1983), AMNH 108459, AMNH loc. 3278, Baculites grandis Zone, Pierre Shale, Weston County, Wyoming. The hook of the body chamber has broken off exposing the dorsal projection, which is plastered against the venter of the phragmocone. D. Kidney-shaped apertural opening showing the dorsal projection, Hoploscaphites criptonodosus (Riccardi, 1983), macroconch, AMNH 71830, AMNH loc. 3921, upper Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana." figureDoi="http://doi.org/10.5281/zenodo.4613623" httpUri="https://zenodo.org/record/4613623/files/figure.png" pageId="22" pageNumber="22">Figures 8A, B</figureCitation>
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, 11C, D, 13–22, 23A–C, 24, 25
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</heading>
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</paragraph>
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</subSubSection>
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||
<subSubSection id="A5A838B48C25A304FD65711B8F2A10D6" pageId="22" pageNumber="22" type="diagnosis">
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<paragraph id="ED0D6B3F8C25A304FD65711B8F2A10D6" blockId="22.[684,1213,816,1733]" pageId="22" pageNumber="22">DIAGNOSIS: Macroconchs oval to nearly circular in lateral view; cross section of shaft compressed subovoid with high whorls consisting of broadly rounded flanks and nearly flat venter; maximum width at adoral part of shaft; small umbilicus commonly with umbilical bulge; ribs coarse on phragmocone at the point of exposure, subsequently becoming finer; small, moderately closely spaced ventrolateral tubercles; small umbilicolateral tubercles on body chamber; occasional lateral tubercles on adapical part of phragmocone; apertural angle averaging 56°; microconchs oval in lateral view; cross section of shaft subovoid with broadly rounded flanks converging toward ventrolateral shoulder; large umbilicus exposing earlier whorls; closely spaced ventrolateral tubercles; relatively prominent umbilicolateral tubercles on body chamber; suture with broad, asymmetrically bifid first lateral saddle and narrow, symmetrically to asymmetrically bifid first lateral lobe.</paragraph>
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</subSubSection>
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<subSubSection id="A5A838B48C25A305FD6577CC892510B4" lastPageId="23" lastPageNumber="23" pageId="22" pageNumber="22" type="etymology">
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<paragraph id="ED0D6B3F8C25A305FD6577CC8A421667" blockId="22.[684,1213,816,1733]" lastBlockId="23.[108,637,819,1736]" lastPageId="23" lastPageNumber="23" pageId="22" pageNumber="22">
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ETYMOLOGY: The name is derived from the Latin word
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<taxonomicName id="2AB210BC8C25A304FC9E7423885D1314" authorityName="Landman & Kennedy & Larson & Grier & Grier & Linn" authorityYear="2019" box="[823,891,1544,1567]" class="Cephalopoda" family="Scaphitidae" genus="Hoploscaphites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="22" pageNumber="22" phylum="Mollusca" rank="species" species="macer">
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<emphasis id="DFC6B72D8C25A304FC9E7423885D1314" box="[823,891,1544,1567]" italics="true" pageId="22" pageNumber="22">macer</emphasis>
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</taxonomicName>
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, “thin,” which is one’s first impression of this species relative to other species in the same biostratigraphic zones. Upon inspection, however, the shell is slightly inflated. Nevertheless, this name has been used informally for the last 20 years, and for the sake of stability, we decided to retain the name for this species.
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</paragraph>
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<caption id="B9CD3BB78C24A305FFC470E18F8817EB" ID-DOI="http://doi.org/10.5281/zenodo.4613634" ID-Zenodo-Dep="4613634" box="[109,1198,712,736]" httpUri="https://zenodo.org/record/4613634/files/figure.png" pageId="23" pageNumber="23" startId="23.[109,193,714,735]" targetBox="[174,1147,227,684]" targetPageId="23">
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<paragraph id="ED0D6B3F8C24A305FFC470E18F8817EB" blockId="23.[109,1198,712,736]" box="[109,1198,712,736]" pageId="23" pageNumber="23">
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FIGURE 13. Size-frequency histogram of
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<taxonomicName id="2AB210BC8C24A305FDA270E389FB17D4" authority="Landman & Kennedy & Larson & Grier & Grier & Linn, 2019" authorityName="Landman & Kennedy & Larson & Grier & Grier & Linn" authorityYear="2019" box="[523,733,712,736]" class="Cephalopoda" family="Scaphitidae" genus="Hoploscaphites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ammonoidea" pageId="23" pageNumber="23" phylum="Mollusca" rank="species" species="macer" status="sp. nov.">
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<emphasis id="DFC6B72D8C24A305FDA270E389FB17D4" box="[523,733,712,736]" italics="true" pageId="23" pageNumber="23">Hoploscaphites macer</emphasis>
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</taxonomicName>
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,
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<taxonomicNameLabel id="C4F50A568C24A305FD4170E3883917D4" box="[744,799,712,735]" pageId="23" pageNumber="23" rank="species">n. sp.</taxonomicNameLabel>
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, based on the samples in tables 1 and 2.
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</paragraph>
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</caption>
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<paragraph id="ED0D6B3F8C24A305FF27715E892510B4" blockId="23.[108,637,819,1736]" pageId="23" pageNumber="23">
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TYPES: The
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<typeStatus id="3209D59D8C24A305FEBA715E8A521686" box="[275,372,885,909]" pageId="23" pageNumber="23" type="holotype">holotype</typeStatus>
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is AMNH 71839 (figs. 19E–H, 23A), a macroconch, from the lower part of the
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<emphasis id="DFC6B72D8C24A305FF1D71938BE516C4" box="[180,195,952,975]" italics="true" pageId="23" pageNumber="23">B</emphasis>
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.
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<emphasis id="DFC6B72D8C24A305FF79719C8A3816C4" box="[208,286,951,975]" italics="true" pageId="23" pageNumber="23">grandis</emphasis>
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Zone of the Pierre Shale on the Cedar Creek Anticline,
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<collectingRegion id="2F76A5DD8C24A305FEC271F28AF616FB" box="[363,464,985,1008]" country="United States of America" name="Montana" pageId="23" pageNumber="23">Montana</collectingRegion>
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. It is a steinkern with some attached shell
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<quantity id="2A4AC6DA8C24A305FE2571D28AD7111A" box="[396,497,1017,1041]" metricMagnitude="-2" metricUnit="m" metricValue="5.42" pageId="23" pageNumber="23" unit="mm" value="54.2">54.2 mm</quantity>
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in diameter with a small umbilicus. The macroconch
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<typeStatus id="3209D59D8C24A305FDEB76308B81115F" pageId="23" pageNumber="23" type="paratype">paratypes</typeStatus>
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are AMNH 113323 (fig. 20D–F) and 113324 (fig. 20G–I), both from the upper part of the
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<emphasis id="DFC6B72D8C24A305FF3176548B8E119D" box="[152,168,1151,1174]" italics="true" pageId="23" pageNumber="23">B</emphasis>
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.
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<emphasis id="DFC6B72D8C24A305FF1E76558A2E119D" box="[183,264,1150,1174]" italics="true" pageId="23" pageNumber="23">baculus</emphasis>
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Zone or the lower part of the
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<emphasis id="DFC6B72D8C24A305FDCF76548950119D" box="[614,630,1151,1174]" italics="true" pageId="23" pageNumber="23">B</emphasis>
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.
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<emphasis id="DFC6B72D8C24A305FFC576B48B9D11BC" box="[108,187,1183,1207]" italics="true" pageId="23" pageNumber="23">grandis</emphasis>
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Zone of the Pierre Shale on the Cedar Creek Anticline,
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<collectingRegion id="2F76A5DD8C24A305FE8776EA8AB211D3" box="[302,404,1217,1240]" country="United States of America" name="Montana" pageId="23" pageNumber="23">Montana</collectingRegion>
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, and USNM 713612 (fig. 17A–C) from the
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<emphasis id="DFC6B72D8C24A305FEDF76C98AA011F2" box="[374,390,1250,1273]" italics="true" pageId="23" pageNumber="23">B</emphasis>
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.
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<emphasis id="DFC6B72D8C24A305FE3E76CA8AC111F2" box="[407,487,1249,1273]" italics="true" pageId="23" pageNumber="23">grandis</emphasis>
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Zone of the Bearpaw Shale in Roosevelt County,
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<collectingRegion id="2F76A5DD8C24A305FDBB7728895E1011" box="[530,632,1283,1306]" country="United States of America" name="Montana" pageId="23" pageNumber="23">Montana</collectingRegion>
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. The microconch
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<typeStatus id="3209D59D8C24A305FE9A770F8AB81037" box="[307,414,1316,1340]" pageId="23" pageNumber="23" type="paratype">paratypes</typeStatus>
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are AMNH 72634 (
|
||
<figureCitation id="758977BA8C24A305FFDD776F8B9C1057" box="[116,186,1348,1372]" captionStart="FIGURE 24" captionStartId="43.[108,194,1506,1527]" captionTargetId="graphics-26@40.[264,817,881,1075]" captionTargetPageId="40" captionText="FIGURE 24. Hoploscaphites macer, microconchs. A-D. YPM 35657, YPM loc. A4745, Baculites baculus or B. grandis Zone, Pierre Shale, Niobrara County, Wyoming. A, Right lateral; B, apertural; C, ventral; D, left lateral. E–H. AMNH 108314, paratype, AMNH loc. 3244, lower B. grandis Zone, Pierre Shale, Dawson County, Montana. E, Right lateral; F, apertural; G, ventral; H, left lateral. I–L. AMNH 76383, AMNH loc. 3921, upper Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. I, Right lateral; J, apertural; K, ventral; L, left lateral. M–P. AMNH 72634, paratype, AMNH loc. 3921, upper Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. M, Right lateral; N, apertural; O, ventral; P, left lateral. Arrows indicate the base of the body chamber. Specimens ×1." figureDoi="http://doi.org/10.5281/zenodo.4633264" httpUri="https://zenodo.org/record/4633264/files/figure.png" pageId="23" pageNumber="23">fig. 24</figureCitation>
|
||
M–P) and 108314 (
|
||
<figureCitation id="758977BA8C24A305FE38776F8AFE1057" box="[401,472,1348,1372]" captionStart="FIGURE 24" captionStartId="43.[108,194,1506,1527]" captionTargetId="graphics-26@40.[264,817,881,1075]" captionTargetPageId="40" captionText="FIGURE 24. Hoploscaphites macer, microconchs. A-D. YPM 35657, YPM loc. A4745, Baculites baculus or B. grandis Zone, Pierre Shale, Niobrara County, Wyoming. A, Right lateral; B, apertural; C, ventral; D, left lateral. E–H. AMNH 108314, paratype, AMNH loc. 3244, lower B. grandis Zone, Pierre Shale, Dawson County, Montana. E, Right lateral; F, apertural; G, ventral; H, left lateral. I–L. AMNH 76383, AMNH loc. 3921, upper Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. I, Right lateral; J, apertural; K, ventral; L, left lateral. M–P. AMNH 72634, paratype, AMNH loc. 3921, upper Baculites baculus or lower B. grandis Zone, Pierre Shale, Cedar Creek Anticline, east-central Montana. M, Right lateral; N, apertural; O, ventral; P, left lateral. Arrows indicate the base of the body chamber. Specimens ×1." figureDoi="http://doi.org/10.5281/zenodo.4633264" httpUri="https://zenodo.org/record/4633264/files/figure.png" pageId="23" pageNumber="23">fig. 24</figureCitation>
|
||
E–H) from the upper part of the
|
||
<emphasis id="DFC6B72D8C24A305FE9E774D8A611076" box="[311,327,1382,1405]" italics="true" pageId="23" pageNumber="23">B</emphasis>
|
||
.
|
||
<emphasis id="DFC6B72D8C24A305FEFF774E8A811076" box="[342,423,1381,1405]" italics="true" pageId="23" pageNumber="23">baculus</emphasis>
|
||
Zone or the lower part of the
|
||
<emphasis id="DFC6B72D8C24A305FF4D77AC8BD21095" box="[228,244,1415,1438]" italics="true" pageId="23" pageNumber="23">B</emphasis>
|
||
.
|
||
<emphasis id="DFC6B72D8C24A305FEA977AD8A681095" box="[256,334,1414,1438]" italics="true" pageId="23" pageNumber="23">grandis</emphasis>
|
||
Zone of the Pierre Shale on the Cedar Creek Anticline,
|
||
<collectingRegion id="2F76A5DD8C24A305FE3377838AD910B4" box="[410,511,1448,1471]" country="United States of America" name="Montana" pageId="23" pageNumber="23">Montana</collectingRegion>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="A5A838B48C24A305FF2577E28FA513C3" pageId="23" pageNumber="23" type="materials_examined">
|
||
<paragraph id="ED0D6B3F8C24A305FF2577E2897513C3" blockId="23.[108,637,819,1736]" pageId="23" pageNumber="23">
|
||
MATERIAL: The collection consists of approximately
|
||
<specimenCount id="FBB4A0B68C24A305FF1577C18A7D1309" box="[188,347,1514,1538]" pageId="23" pageNumber="23" type="generic">100 specimens</specimenCount>
|
||
of which 75 comprise the measured set (40 macroconchs and 35 microconchs) (tables 1, 2). All the specimens in our collection are from the upper part of the
|
||
<emphasis id="DFC6B72D8C24A305FDB774668B9A138D" italics="true" pageId="23" pageNumber="23">Baculites baculus</emphasis>
|
||
Zone or lower part of the
|
||
<emphasis id="DFC6B72D8C24A305FE7F74448AC3138D" box="[470,485,1647,1670]" italics="true" pageId="23" pageNumber="23">B</emphasis>
|
||
.
|
||
<emphasis id="DFC6B72D8C24A305FE5874458918138D" box="[497,574,1646,1670]" italics="true" pageId="23" pageNumber="23">grandis</emphasis>
|
||
Zone of the Pierre Shale in
|
||
<collectingRegion id="2F76A5DD8C24A305FECD74A48AF713AC" box="[356,465,1679,1703]" country="United States of America" name="Wyoming" pageId="23" pageNumber="23">Wyoming</collectingRegion>
|
||
,
|
||
<collectingRegion id="2F76A5DD8C24A305FE7674A4896013AC" box="[479,582,1679,1703]" country="United States of America" name="Colorado" pageId="23" pageNumber="23">Colorado</collectingRegion>
|
||
, and
|
||
<collectingRegion id="2F76A5DD8C24A305FFC5749A8BEB13C3" box="[108,205,1713,1736]" country="United States of America" name="Montana" pageId="23" pageNumber="23">Montana</collectingRegion>
|
||
and the Bearpaw Shale in
|
||
<collectingRegion id="2F76A5DD8C24A305FE45749A896913C3" box="[492,591,1713,1736]" country="United States of America" name="Montana" pageId="23" pageNumber="23">Montana</collectingRegion>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="ED0D6B3F8C24A305FD6571188F1411F2" blockId="23.[683,1214,819,1741]" pageId="23" pageNumber="23">
|
||
MACROCONCH DESCRIPTION: In the measured sample,
|
||
<collectionCode id="8BA3F3FA8C24A305FCF1717F88831667" box="[856,933,852,876]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
averages
|
||
<quantity id="2A4AC6DA8C24A305FBB4717F8FA01667" box="[1053,1158,852,876]" metricMagnitude="-2" metricUnit="m" metricValue="6.14" pageId="23" pageNumber="23" unit="mm" value="61.4">61.4 mm</quantity>
|
||
and ranges from 45.2 to 76.0 mm (table 1). The ratio of the size of the largest specimen to that of the smallest is 1.68. The specimens form a broad size distribution, with a peak at
|
||
<quantity id="2A4AC6DA8C24A305FC4971F38F7E16FB" box="[992,1112,984,1008]" metricMagnitude="-2" metricUnit="m" metricValue="5.25" metricValueMax="5.5" metricValueMin="5.0" pageId="23" pageNumber="23" unit="mm" value="52.5" valueMax="55.0" valueMin="50.0">50–55 mm</quantity>
|
||
(fig. 13). Adults are slender with an oval to circular outline in side view.
|
||
<collectionCode id="8BA3F3FA8C24A305FCDE763088E01138" box="[887,966,1051,1075]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
/HS averages 2.05 and ranges from 1.86 to 2.25 (
|
||
<quantity id="2A4AC6DA8C24A305FC6276178F3F115F" box="[971,1049,1084,1108]" metricMagnitude="-2" metricUnit="m" metricValue="4.9276" pageId="23" pageNumber="23" unit="in" value="1.94">1.94 in</quantity>
|
||
the
|
||
<typeStatus id="3209D59D8C24A305FBE476178F97115F" box="[1101,1201,1084,1108]" pageId="23" pageNumber="23" type="holotype">holotype</typeStatus>
|
||
). BHI 4346 (fig. 14A–D) is an example of a specimen with an oval outline (
|
||
<collectionCode id="8BA3F3FA8C24A305FC6E76558F31119D" box="[967,1047,1150,1174]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
/HS = 2.17) and
|
||
<collectionCode id="8BA3F3FA8C24A305FD0576B4882611BC" box="[684,768,1183,1207]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34925" lsid="urn:lsid:biocol.org:col:34925" name="American Museum of Natural History" pageId="23" pageNumber="23">AMNH</collectionCode>
|
||
108487 (fig. 19A–D) is an example of a specimen with a more rounded, nearly perfectly circular outline (
|
||
<collectionCode id="8BA3F3FA8C24A305FCCA76CA889411F2" box="[867,946,1249,1273]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
/HS = 1.98).
|
||
</paragraph>
|
||
<paragraph id="ED0D6B3F8C24A305FD6577298FA513C3" blockId="23.[683,1214,819,1741]" pageId="23" pageNumber="23">
|
||
The umbilicus is small and deep. The umbilical diameter averages
|
||
<quantity id="2A4AC6DA8C24A305FCD8770888E51030" box="[881,963,1315,1339]" metricMagnitude="-3" metricUnit="m" metricValue="3.8" pageId="23" pageNumber="23" unit="mm" value="3.8">3.8 mm</quantity>
|
||
and ranges from
|
||
<quantity id="2A4AC6DA8C24A305FB28770888261057" metricMagnitude="-3" metricUnit="m" metricValue="4.2" metricValueMax="6.5" metricValueMin="1.9" pageId="23" pageNumber="23" unit="mm" value="4.2" valueMax="6.5" valueMin="1.9">1.9 to 6.5 mm</quantity>
|
||
. UD/
|
||
<collectionCode id="8BA3F3FA8C24A305FC9C776F88A41057" box="[821,898,1348,1372]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
averages 0.06 and ranges from 0.04 to 0.12. In lateral view, the umbilical wall is straight and usually exhibits a pronounced umbilical bulge, so that part of the umbilicus of the phragmocone is concealed. All specimens are tightly coiled with little or no gap between the phragmocone and hook.
|
||
<collectionCode id="8BA3F3FA8C24A305FCC27420889F1328" box="[875,953,1547,1571]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
/HP
|
||
<subScript id="7136697A8C24A305FC74743D88C0132C" attach="left" box="[989,998,1558,1575]" fontSize="7" pageId="23" pageNumber="23">2</subScript>
|
||
averages 2.78 and ranges from 2.55 to 2.98 (
|
||
<quantity id="2A4AC6DA8C24A305FC6474078F3D134F" box="[973,1051,1580,1604]" metricMagnitude="-2" metricUnit="m" metricValue="6.858" pageId="23" pageNumber="23" unit="in" value="2.7">2.70 in</quantity>
|
||
the
|
||
<typeStatus id="3209D59D8C24A305FBF974078F94134F" box="[1104,1202,1580,1604]" pageId="23" pageNumber="23" type="holotype">holotype</typeStatus>
|
||
).
|
||
<collectionCode id="8BA3F3FA8C24A305FD05746689D9136E" box="[684,767,1613,1637]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34925" lsid="urn:lsid:biocol.org:col:34925" name="American Museum of Natural History" pageId="23" pageNumber="23">AMNH</collectionCode>
|
||
76388 (fig. 18A–C) is an example of a tightly coiled specimen (
|
||
<collectionCode id="8BA3F3FA8C24A305FC1E74458F20138D" box="[951,1030,1646,1670]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
/HP
|
||
<subScript id="7136697A8C24A305FB8374528F141381" attach="left" box="[1066,1074,1657,1674]" fontSize="7" pageId="23" pageNumber="23">2</subScript>
|
||
= 2.75) and BHI 4346 (fig. 14A–D) is an example of a more loosely coiled specimen (
|
||
<collectionCode id="8BA3F3FA8C24A305FC18749B88D913C3" box="[945,1023,1712,1736]" pageId="23" pageNumber="23">LMAX</collectionCode>
|
||
/HP
|
||
<subScript id="7136697A8C24A305FB8A74978F0D13C6" attach="right" box="[1059,1067,1724,1741]" fontSize="7" pageId="23" pageNumber="23">2</subScript>
|
||
= 2.89).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |