<document ID-DOI="10.5281/zenodo.1037499" ID-GBIF-Dataset="edaefd1e-b9e7-4502-98fb-776efdefa37f" ID-Zenodo-Dep="1037499" checkinTime="1508921685306" checkinUser="plazi" docAuthor="E. D. Cope." docDate="1892" docId="03FC8783FFFAFFA5FF5A7EF5E3C10FBA" docLanguage="en" docName="Cope_1892_manospondylus gigas (almost done).pdf.imf" docOrigin="The American Naturalist 26" docStyle="DocumentStyle{}" docTitle="Claorhynchus trihedrus Cope 1892" docType="treatment" docVersion="20" lastPageNumber="757" masterDocId="FFC5FFFBFFFBFFA7FF8A7B09E0130E07" masterDocTitle="Fourth note on the Dinosauria of the Laramie." masterLastPageNumber="758" masterPageNumber="756" pageNumber="757" updateTime="1663156283657" updateUser="tatiana">
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<mods:titleInfo>
<mods:title>Fourth note on the Dinosauria of the Laramie.</mods:title>
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<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>E. D. Cope.</mods:namePart>
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<mods:title>The American Naturalist</mods:title>
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<mods:part>
<mods:date>1892</mods:date>
<mods:detail type="pubDate">
<mods:number>1892-09-30</mods:number>
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<mods:detail type="volume">
<mods:number>26</mods:number>
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<mods:start>756</mods:start>
<mods:end>758</mods:end>
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<mods:identifier type="DOI">10.5281/zenodo.1037499</mods:identifier>
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<mods:identifier type="Zenodo-Dep">1037499</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.4914166" ID-GBIF-Taxon="159879411" ID-Zenodo-Dep="4914166" LSID="urn:lsid:plazi:treatment:03FC8783FFFAFFA5FF5A7EF5E3C10FBA" httpUri="http://treatment.plazi.org/id/03FC8783FFFAFFA5FF5A7EF5E3C10FBA" lastPageId="2" lastPageNumber="757" pageId="1" pageNumber="757">
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<paragraph blockId="1.[172,1290,1532,2154]" box="[208,1213,1532,1566]" pageId="1" pageNumber="757">
<taxonomicName authority="Cope, 1892" authorityName="Cope" authorityYear="1892" box="[208,664,1532,1566]" class="Reptilia" family="Ceratopsidae" genus="Claorhynchus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="1" pageNumber="757" phylum="Chordata" rank="species" species="trihedrus" status="gen. et sp. nov.">
<emphasis box="[208,664,1532,1566]" italics="true" pageId="1" pageNumber="757">Claorhynchus trihedrus</emphasis>
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.—Gen. 
<emphasis box="[802,833,1532,1566]" italics="true" pageId="1" pageNumber="757">et</emphasis>
. sp. nov. 
<emphasis box="[1003,1213,1532,1566]" italics="true" pageId="1" pageNumber="757">Char. Gen.—</emphasis>
</paragraph>
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<paragraph blockId="1.[172,1290,1532,2154]" pageId="1" pageNumber="757">
This genus is established on a 
<materialsCitation ID-GBIF-Occurrence="2433423073" box="[580,1037,1577,1611]" country="United States" formation="Laramie Formation" geologicalContextID="Cretaceous" pageId="1" pageNumber="757" preperations="rostral and predentary bones, fragments of supratemporal bone" specimenCount="1" typeStatus="type">
rostral and 
<emphasis box="[765,933,1577,1611]" italics="true" pageId="1" pageNumber="757">predentary</emphasis>
bones
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of a species of the Agathaumidae, which were found together and with the fragments of a massive supratemporal 
<emphasis box="[645,718,1667,1701]" italics="true" pageId="1" pageNumber="757">bone</emphasis>
. They are distinguished by their absolutely flat inferior faces, there being no alveolar ridges as in the forms described by 
<emphasis box="[486,588,1758,1792]" italics="true" pageId="1" pageNumber="757">Marsh</emphasis>
. They are not compressed but are as wide as long. They are not adapted to the muzzle of Monoclonius, where the 
<emphasis box="[238,465,1850,1884]" italics="true" pageId="1" pageNumber="757">rostral bone is</emphasis>
compressed. (
<emphasis box="[715,956,1850,1884]" italics="true" pageId="1" pageNumber="757">M. sphenocerus.</emphasis>
)
</paragraph>
<paragraph blockId="1.[172,1290,1532,2154]" pageId="1" pageNumber="757">
<emphasis box="[218,449,1894,1928]" italics="true" pageId="1" pageNumber="757">Char. specif.—</emphasis>
Rostral and 
<emphasis box="[654,824,1894,1928]" italics="true" pageId="1" pageNumber="757">predentary</emphasis>
bones as wide as long, with flat inferior face and rounded superior median angle. Transverse diameter 
<emphasis box="[329,427,1984,2018]" italics="true" pageId="1" pageNumber="757">rather</emphasis>
exceeding 
<emphasis box="[619,667,1984,2018]" italics="true" pageId="1" pageNumber="757">the</emphasis>
vertical. 
<emphasis box="[842,1050,1984,2018]" italics="true" pageId="1" pageNumber="757">Sides convex</emphasis>
. All 
<emphasis box="[1165,1211,1984,2018]" italics="true" pageId="1" pageNumber="757">the</emphasis>
surfaces furrowed 
<emphasis box="[426,463,2030,2064]" italics="true" pageId="1" pageNumber="757">by</emphasis>
coarse grooves which terminate 
<emphasis box="[996,1023,2030,2064]" italics="true" pageId="1" pageNumber="757">in</emphasis>
foramina.
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<paragraph blockId="1.[172,1290,1532,2154]" lastBlockId="2.[141,1262,366,1452]" lastPageId="2" lastPageNumber="758" pageId="1" pageNumber="757">
The 
<emphasis box="[298,379,2075,2109]" italics="true" pageId="1" pageNumber="757">short</emphasis>
wide form of this species differs from 
<emphasis box="[1025,1288,2075,2109]" italics="true" pageId="1" pageNumber="757">that seen in the</emphasis>
species of 
<emphasis box="[355,404,2120,2154]" italics="true" pageId="1" pageNumber="757">the</emphasis>
family Agathaumidae which 
<emphasis box="[890,1052,2120,2154]" italics="true" pageId="1" pageNumber="757">have been</emphasis>
yet described. The extremity of the beak had apparently a horny sheath and was adapted for crushing comparatively hard substances.
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