84 lines
8.5 KiB
XML
84 lines
8.5 KiB
XML
<document ID-DOI="10.5281/zenodo.3382461" ID-GBIF-Dataset="fd03f669-c046-46cd-861a-6bf56b7fc989" ID-Handle="http://hdl.handle.net/2246/1099" ID-Zenodo-Dep="3382461" approvalRequired="468" approvalRequired_for_bibRefs="7" approvalRequired_for_document="1" approvalRequired_for_illustrations="16" approvalRequired_for_originalDoi="1" approvalRequired_for_taxonomicNames="18" approvalRequired_for_textStreams="406" approvalRequired_for_treatments="19" checkinTime="1567239673843" checkinUser="plazi" docAuthor="Sahni, Ashok" docDate="1972" docId="1A7187CFFFA91719FAC6F957E3DC5254" docLanguage="en" docName="B147.6.pdf" docOrigin="Bulletin of the American Museum of Natural History 147 (6)" docStyle="DocumentStyle{}" docTitle="Pediomys clemensi Sahni 1972, new species" docType="treatment" docVersion="22" lastPageNumber="385" masterDocId="E648FFB7FFEA175DFFBAFFBEE2785A7A" masterDocTitle="The vertebrate Fauna of the Judith River formation, Montana" masterLastPageNumber="416" masterPageNumber="319" pageNumber="384" updateTime="1673867241423" updateUser="jeremy">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>The vertebrate Fauna of the Judith River formation, Montana</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Sahni, Ashok</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Bulletin of the American Museum of Natural History</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>1972</mods:date>
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<mods:detail type="volume">
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<mods:number>147</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>6</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>319</mods:start>
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<mods:end>416</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.5281/zenodo.3382461</mods:identifier>
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<mods:identifier type="GBIF-Dataset">fd03f669-c046-46cd-861a-6bf56b7fc989</mods:identifier>
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<mods:identifier type="Handle">http://hdl.handle.net/2246/1099</mods:identifier>
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<mods:identifier type="Zenodo-Dep">3382461</mods:identifier>
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</mods:mods>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.4710530" ID-GBIF-Taxon="159397360" ID-Zenodo-Dep="4710530" LSID="urn:lsid:plazi:treatment:1A7187CFFFA91719FAC6F957E3DC5254" httpUri="http://treatment.plazi.org/id/1A7187CFFFA91719FAC6F957E3DC5254" lastPageId="68" lastPageNumber="385" pageId="67" pageNumber="384">
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<subSubSection box="[1404,1999,1769,1806]" pageId="67" pageNumber="384" type="nomenclature">
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<paragraph blockId="67.[1404,1999,1768,1807]" box="[1404,1999,1769,1806]" pageId="67" pageNumber="384">
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<taxonomicName authority="Sahni, 1972" authorityName="Sahni" authorityYear="1972" box="[1404,1781,1769,1806]" class="Mammalia" family="Peradectidae" genus="Pediomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Didelphimorphia" pageId="67" pageNumber="384" phylum="Chordata" rank="species" species="clemensi" status="new species">
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<emphasis bold="true" box="[1404,1781,1769,1806]" italics="true" pageId="67" pageNumber="384">Pediomys clemensi</emphasis>
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</taxonomicName>
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,
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<taxonomicNameLabel box="[1800,1999,1770,1806]" pageId="67" pageNumber="384" rank="species">new species</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="67" pageNumber="384" type="etymology">
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<paragraph blockId="67.[1277,2130,1845,2798]" pageId="67" pageNumber="384">ETYMOLOGY: For W. A. Clemens, University of California, Berkeley.</paragraph>
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</subSubSection>
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<subSubSection pageId="67" pageNumber="384" type="materials_examined">
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<paragraph blockId="67.[1277,2130,1845,2798]" pageId="67" pageNumber="384">HOLOTYPE: AMNH 77373, an upper molar (M2 or M3).</paragraph>
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<paragraph blockId="67.[1277,2130,1845,2798]" pageId="67" pageNumber="384">TYPE LOCALITY: Clambank Hollow, Chouteau County, Montana.</paragraph>
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</subSubSection>
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<subSubSection pageId="67" pageNumber="384" type="biology_ecology">
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<paragraph blockId="67.[1277,2130,1845,2798]" pageId="67" pageNumber="384">DISTRIBUTION: Judith River Formation, Montana.</paragraph>
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</subSubSection>
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<subSubSection pageId="67" pageNumber="384" type="diagnosis">
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<paragraph blockId="67.[1277,2130,1845,2798]" pageId="67" pageNumber="384">
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<emphasis box="[1320,1503,2258,2293]" italics="true" pageId="67" pageNumber="384">DIAGNOSIS</emphasis>
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: A small Campanian pediomyid most closely similar to
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<taxonomicName authorityName="Clemens" authorityYear="1966" box="[1752,1928,2304,2339]" class="Mammalia" family="Peradectidae" genus="Pediomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Didelphimorphia" pageId="67" pageNumber="384" phylum="Chordata" rank="species" species="elegans">
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<emphasis box="[1752,1780,2304,2338]" italics="true" pageId="67" pageNumber="384">P</emphasis>
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.
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<emphasis box="[1820,1928,2304,2339]" italics="true" pageId="67" pageNumber="384">elegans</emphasis>
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</taxonomicName>
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from the Maestrichtian. Stylar cusp A (parastyle) and D are well developed. Cusp B is feebly formed and is situated posterolabial to the paracone, close to the equally small stylar cusp C.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="68" lastPageNumber="385" pageId="67" pageNumber="384" type="description">
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<paragraph blockId="67.[1277,2130,1845,2798]" lastBlockId="68.[155,1003,354,2094]" lastPageId="68" lastPageNumber="385" pageId="67" pageNumber="384">DESCRIPTION: Two labial fragments of upper molars, AMNH 77373 and 77374, are similar to each other. Specimen AMNH 77373, however, has conules (fig. 13P), whereas the other, AMNH 77374, lacks conules and is slightly larger. The stylar shelf in the specimens is not bilobate and the stylar shelf is weakly developed. Cusp A is better developed than in the other contemporary metatherian genera, and a crest connects it to the paraconule. Cusp B is small and posterolabial to the paracone. The stylar shelf narrows labial to the paracone, and the external rim of the paracone extends to the shelf. Cusp C is posterior to cusp B and slightly larger. The stylar shelf widens posteriorly just lingual to the prominent stylar cusp D, which is the largest stylar cusp. The metastyle is weakly developed and linked to the metacone by a high ridge. The paracone is situated more labial to the metacone and is about the same height.</paragraph>
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<paragraph blockId="68.[155,1003,354,2094]" pageId="68" pageNumber="385">
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There are five lower molars that can be referred to
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<taxonomicName authorityName="Marsh" authorityYear="1889" box="[273,415,1048,1085]" class="Mammalia" family="Peradectidae" genus="Pediomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Didelphimorphia" pageId="68" pageNumber="385" phylum="Chordata" rank="genus">
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<emphasis box="[273,415,1048,1085]" italics="true" pageId="68" pageNumber="385">Pediomys</emphasis>
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</taxonomicName>
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by use of the criterion developed by
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<bibRefCitation author="CLEMENS, W. A." box="[217,495,1091,1129]" journalOrPublisher="Univ. California Publ. Geol. Sci." pageId="68" pageNumber="385" pagination="1 - 122" part="62" refId="ref56477" refString="1966. Fossil mammals of the type Lance Formation, Wyoming. Pt. 2. Marsupialia. Univ. California Publ. Geol. Sci., vol. 62, pp. 1 - 122, figs. 1 - 77, tables 1 - 24." title="Fossil mammals of the type Lance Formation, Wyoming. Pt. 2. Marsupialia" type="journal article" year="1966">Clemens (1966)</bibRefCitation>
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, which is the position of the crista obliqua on the posterior wall of the trigonid. The crista obliqua in pediomyid molars intersects the trigonid wall at the protoconid, a position labial to the usual position in other Cretaceous marsupials. These pediomyid lower molars are small, ranging in length from 1.8 to 2.6 mm. The paraconid is a slender, conical, anteriorly directed cusp in AMNH 77377 (fig. 13S, T). It is only slightly smaller than the metaconid and well separated from it. The protoconid is anterior and taller than the metaconid, and has a small anterobasal cingulum. The talonid is wide, and the hypoconid is a large, high cusp, which is well separated from the twinned hypoconulid and the broken entoconid. The hypoconulid is a small pointed cusp, direct- ed posteriorly and linked to the entoconid by a short ridge. A broad cingulum is present on the posterolabial side of the crown. AMNH 77376 (fig. 13
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<emphasis box="[303,338,2014,2049]" italics="true" pageId="68" pageNumber="385">Q</emphasis>
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, R) is a larger lower molar than AMNH 77377.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |