302 lines
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302 lines
23 KiB
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<document ID-DOI="10.5281/zenodo.3368363" ID-GBIF-Dataset="6de1cdbb-5c8e-4f58-b9e0-1790503ef0a5" ID-Zenodo-Dep="3368363" approvalRequired="35" approvalRequired_for_bibRefs="2" approvalRequired_for_taxonomicNames="13" checkinTime="1565788152416" checkinUser="jeremy" docAuthor="Cope, E. D." docDate="1876" docId="820987CAAF42FFF38087FEE5FC94FC8C" docLanguage="en" docName="Cope1976b.pdf" docOrigin="Proceedings of the Academy of Natural Sciences of Philadelphia 28" docStyle="DocumentStyle{}" docTitle="Champsosaurus Cope ED 1876" docType="treatment" docVersion="14" lastPageNumber="350" masterDocId="7E30FFB2AF4AFFF98112FFEBFFD6FF9C" masterDocTitle="On some extinct reptiles and batrachia from the Judith River and Fox Hills beds of Montana" masterLastPageNumber="359" masterPageNumber="340" pageNumber="348" updateTime="1645445794220" 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>On some extinct reptiles and batrachia from the Judith River and Fox Hills beds of 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>Cope, E. D.</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>Proceedings of the Academy of Natural Sciences of Philadelphia</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>1876</mods:date>
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<mods:detail type="pubDate">
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<mods:number>1876-12-31</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>28</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>340</mods:start>
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<mods:end>359</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.3368363</mods:identifier>
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<mods:identifier type="GBIF-Dataset">6de1cdbb-5c8e-4f58-b9e0-1790503ef0a5</mods:identifier>
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<mods:identifier type="Zenodo-Dep">3368363</mods:identifier>
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</mods:mods>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.4562161" ID-GBIF-Taxon="159128710" ID-Zenodo-Dep="4562161" LSID="urn:lsid:plazi:treatment:820987CAAF42FFF38087FEE5FC94FC8C" httpUri="http://treatment.plazi.org/id/820987CAAF42FFF38087FEE5FC94FC8C" lastPageId="10" lastPageNumber="350" pageId="8" pageNumber="348">
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<subSubSection box="[405,657,269,289]" pageId="8" pageNumber="348" type="nomenclature">
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<paragraph blockId="8.[141,920,269,1477]" box="[405,657,269,289]" pageId="8" pageNumber="348">
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<taxonomicName authority="Cope" authorityName="Cope ED" authorityYear="1876" baseAuthorityName="Cope" box="[405,657,269,289]" class="Sauropsida" family="Champsosauridae" genus="Champsosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Choristodera" pageId="8" pageNumber="348" phylum="Chordata" rank="genus" status="Genus novum">
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<emphasis box="[405,593,270,286]" italics="true" pageId="8" pageNumber="348">CHAMPSOSAURUS</emphasis>
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, Cope.
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</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="10" lastPageNumber="350" pageId="8" pageNumber="348" type="description">
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<paragraph blockId="8.[141,920,269,1477]" pageId="8" pageNumber="348">
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<taxonomicNameLabel box="[172,331,307,325]" pageId="8" pageNumber="348" rank="genus">
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<emphasis box="[172,244,307,325]" italics="true" pageId="8" pageNumber="348">Genus</emphasis>
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novum
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</taxonomicNameLabel>
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.
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<emphasis box="[364,472,306,326]" italics="true" pageId="8" pageNumber="348">Vertebrae</emphasis>
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of more than
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<emphasis box="[653,665,313,326]" italics="true" pageId="8" pageNumber="348">a</emphasis>
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hundred individuals referable to several species. which I obtained from the Judith River beds of the
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<emphasis box="[285,357,372,397]" italics="true" pageId="8" pageNumber="348">Upper</emphasis>
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Missouri region.
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<emphasis box="[571,654,375,397]" italics="true" pageId="8" pageNumber="348">present</emphasis>
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characters which
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<emphasis box="[883,916,373,392]" italics="true" pageId="8" pageNumber="348">demand</emphasis>
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the establishment of a
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<emphasis box="[487,530,411,423]" italics="true" pageId="8" pageNumber="348">new</emphasis>
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genus for their reception.
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</paragraph>
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<paragraph blockId="8.[141,920,269,1477]" pageId="8" pageNumber="348">
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The characters presented by the vertebral column are the
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<emphasis box="[143,220,471,495]" italics="true" pageId="8" pageNumber="348">following</emphasis>
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: The ribs have
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<emphasis box="[442,455,477,490]" italics="true" pageId="8" pageNumber="348">a</emphasis>
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single head, which articulates with a prominent tuberculum. excepting those
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<emphasis box="[627,651,504,522]" italics="true" pageId="8" pageNumber="348">of</emphasis>
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the cervical vertebra. On these there is
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<emphasis box="[346,358,542,555]" italics="true" pageId="8" pageNumber="348">a</emphasis>
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small
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<emphasis box="[439,543,536,560]" italics="true" pageId="8" pageNumber="348">capitular</emphasis>
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tubercle below the
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<emphasis box="[772,911,536,561]" italics="true" pageId="8" pageNumber="348">diapophysis</emphasis>
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. lt commences
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<emphasis box="[314,364,574,593]" italics="true" pageId="8" pageNumber="348">very</emphasis>
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small and inferior in position.
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<emphasis box="[738,911,568,593]" italics="true" pageId="8" pageNumber="348">being removed</emphasis>
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,
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<emphasis box="[143,164,601,620]" italics="true" pageId="8" pageNumber="348">in</emphasis>
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fact, but
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<emphasis box="[283,295,607,620]" italics="true" pageId="8" pageNumber="348">a</emphasis>
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short distance from the inferior middle line in the first vertebra in which
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<emphasis box="[425,441,634,652]" italics="true" pageId="8" pageNumber="348">it</emphasis>
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appears. It rises rapidly in the succecding centra until it is merged in the tuberculum of the diapophysis. The latter projects from the neural arch, which is free from lhe centrum, but in none does the base
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<emphasis box="[692,717,733,750]" italics="true" pageId="8" pageNumber="348">of</emphasis>
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the diapophysis rise from
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<emphasis box="[258,270,771,783]" italics="true" pageId="8" pageNumber="348">a</emphasis>
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point above the floor of the neural canal. On the dorsals it is vertically compressed. One of the anterior cervicais, probably the axis, is obliquely truncated
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<emphasis box="[626,692,830,849]" italics="true" pageId="8" pageNumber="348">below</emphasis>
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its anterior articular
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<emphasis box="[184,228,862,881]" italics="true" pageId="8" pageNumber="348">face</emphasis>
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, for a free hypopophysis or os
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<emphasis box="[589,734,862,881]" italics="true" pageId="8" pageNumber="348">odontoideum</emphasis>
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. This vertebra has no parapophysis, and the articular faces for the neuropophysis
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<emphasis box="[144,178,933,946]" italics="true" pageId="8" pageNumber="348">are</emphasis>
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superior. The few
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<emphasis box="[418,518,928,946]" italics="true" pageId="8" pageNumber="348">vertebrae</emphasis>
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in each of several
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<emphasis box="[737,801,928,947]" italics="true" pageId="8" pageNumber="348">series</emphasis>
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, probably from the sacral region. are more depressed than the others, and
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<emphasis box="[144,179,993,1012]" italics="true" pageId="8" pageNumber="348">the</emphasis>
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facets fur the diapophyses
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<emphasis box="[519,632,996,1017]" italics="true" pageId="8" pageNumber="348">present a</emphasis>
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greater antero-posterior extent, but none are coössified. The caudal vertebrae
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<emphasis box="[787,822,1032,1046]" italics="true" pageId="8" pageNumber="348">are</emphasis>
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distally quite compressed. In all, except the anterior ones, the neural arch is coössified with the centrum. and in such there are no diapophyses. In those with free neural arch, the facets for the neuropophyses turn down on the sides of the centrum.
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</paragraph>
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<paragraph blockId="8.[141,920,269,1477]" pageId="8" pageNumber="348">
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The articular
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<emphasis box="[337,467,1191,1210]" italics="true" pageId="8" pageNumber="348">extremities</emphasis>
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of the centra are plane, those of the caudal series
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<emphasis box="[313,402,1223,1248]" italics="true" pageId="8" pageNumber="348">slightly</emphasis>
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concave. There are no hypapophyses behind the axis, excepting a longitudinal carina, which ceases to exist on
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<emphasis box="[249,284,1288,1307]" italics="true" pageId="8" pageNumber="348">the</emphasis>
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dorsal vertebrae. The zygapophyses are simple. The chevron bones
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<emphasis box="[321,356,1326,1339]" italics="true" pageId="8" pageNumber="348">are</emphasis>
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free.
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</paragraph>
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<paragraph blockId="8.[141,920,269,1477]" lastBlockId="9.[48,828,174,1463]" lastPageId="9" lastPageNumber="349" pageId="8" pageNumber="348">
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The relations
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<emphasis box="[336,362,1353,1372]" italics="true" pageId="8" pageNumber="348">of</emphasis>
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the atlas and axis, though not fully elucidated
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<emphasis box="[146,173,1386,1410]" italics="true" pageId="8" pageNumber="348">by</emphasis>
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my specimens, are peculiar. The former has separate neurapophyses,
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<emphasis box="[270,335,1419,1437]" italics="true" pageId="8" pageNumber="348">which</emphasis>
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have
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<emphasis box="[419,489,1419,1444]" italics="true" pageId="8" pageNumber="348">nearly</emphasis>
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the shape of those
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<emphasis box="[740,764,1419,1437]" italics="true" pageId="8" pageNumber="348">of</emphasis>
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the
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<emphasis italics="true" pageId="8" pageNumber="348">Streptostylicate Reptilia</emphasis>
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, resembling much those of the
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<taxonomicName baseAuthorityName="Cope" baseAuthorityYear="1869" box="[730,914,1450,1475]" genus="Pythonomorpha" pageId="8" pageNumber="348" rank="genus">Pythonomorpha</taxonomicName>
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. Although I procured numerous cervical vertebrae, there
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<emphasis bold="true" box="[739,774,180,193]" pageId="9" pageNumber="349">are</emphasis>
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but few which exhibit the antero-inferior facet for supposed hypapophysis, already described. The position of this vertebra was in front of the first cervical which displays:
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<emphasis bold="true" box="[556,563,278,291]" pageId="9" pageNumber="349">a</emphasis>
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parapophysis, and is,
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<emphasis box="[51,79,310,323]" italics="true" pageId="9" pageNumber="349">on</emphasis>
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this account, likely to be the axis or the third cervical vertebra. It is the more probably
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<emphasis box="[336,370,338,356]" italics="true" pageId="9" pageNumber="349">the</emphasis>
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axis, as there is no other among the large number of vertebrae in my collection which can he referred to that position. Its anterior articular face is
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<emphasis box="[631,714,404,422]" italics="true" pageId="9" pageNumber="349">smooth</emphasis>
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and like the posterior, showing that the odontoid bone
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<emphasis bold="true" box="[614,656,441,455]" pageId="9" pageNumber="349">was</emphasis>
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not coössified
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<emphasis bold="true" box="[52,101,468,487]" pageId="9" pageNumber="349">with</emphasis>
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<emphasis box="[113,129,469,487]" italics="true" pageId="9" pageNumber="349">it</emphasis>
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.
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<emphasis box="[163,215,468,488]" italics="true" pageId="9" pageNumber="349">Now</emphasis>
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in the
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<taxonomicName authorityName="Wagler" authorityYear="1830" baseAuthorityName="Cope" box="[306,425,468,488]" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodilia" pageId="9" pageNumber="349" phylum="Chordata" rank="order">Crocodilia</taxonomicName>
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the odontoid bone is united
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<emphasis box="[776,826,469,487]" italics="true" pageId="9" pageNumber="349">with</emphasis>
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the anterior extremity of the axis
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<emphasis box="[475,502,500,524]" italics="true" pageId="9" pageNumber="349">by</emphasis>
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suture,
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<emphasis bold="true" box="[602,667,500,519]" pageId="9" pageNumber="349">which</emphasis>
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may become coössified
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<emphasis bold="true" box="[169,220,533,551]" pageId="9" pageNumber="349">with</emphasis>
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age, while the free hypapophysis is wanting.
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<emphasis bold="true" box="[801,825,531,550]" pageId="9" pageNumber="349">In</emphasis>
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the streptostylicate orders the hypapophysis
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<emphasis bold="true" box="[601,618,565,582]" pageId="9" pageNumber="349">is</emphasis>
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present, and the odontoid is above it,
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<emphasis bold="true" box="[314,352,598,616]" pageId="9" pageNumber="349">but</emphasis>
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united
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<emphasis bold="true" box="[454,476,601,616]" pageId="9" pageNumber="349">to</emphasis>
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the axis
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<emphasis box="[599,627,597,621]" italics="true" pageId="9" pageNumber="349">by</emphasis>
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suture.
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<emphasis bold="true" box="[744,777,597,616]" pageId="9" pageNumber="349">On</emphasis>
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the other hand, in the
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<taxonomicName authorityName="Gunther" authorityYear="1867" baseAuthorityName="Cope" box="[261,459,630,654]" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchocephalia" pageId="9" pageNumber="349" phylum="Chordata" rank="order">
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<emphasis box="[261,459,630,654]" italics="true" pageId="9" pageNumber="349">Rhynchocephalia</emphasis>
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</taxonomicName>
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, the axis is coössified with
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<emphasis bold="true" box="[774,826,630,648]" pageId="9" pageNumber="349">both</emphasis>
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odontoid and hypapophysis, and a few succeeding vertebrae possess free hypapophyses. Thus it is possible that I am
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<emphasis bold="true" box="[629,665,698,720]" pageId="9" pageNumber="349">yet</emphasis>
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unacquainted with the axis of
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<taxonomicName authorityName="Cope ED" authorityYear="1876" baseAuthorityName="Cope" box="[249,433,728,752]" class="Sauropsida" family="Champsosauridae" genus="Champsosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Choristodera" pageId="9" pageNumber="349" phylum="Chordata" rank="genus">
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<emphasis box="[249,433,728,752]" italics="true" pageId="9" pageNumber="349">Champsosaurus</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph blockId="9.[48,828,174,1463]" pageId="9" pageNumber="349">
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One entire rib and the heads of several others
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<emphasis bold="true" box="[632,666,766,779]" pageId="9" pageNumber="349">are</emphasis>
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all that were obtained. The former is from the anterior
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<emphasis bold="true" box="[603,651,795,816]" pageId="9" pageNumber="349">part</emphasis>
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of the dorsal series, and is stout and short. The head
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<emphasis bold="true" box="[573,590,825,843]" pageId="9" pageNumber="349">is</emphasis>
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truncate and compressed, its articular face is contracted, forming
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<emphasis bold="true" box="[643,746,864,877]" pageId="9" pageNumber="349">a narrow</emphasis>
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figure
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<emphasis box="[51,109,890,915]" italics="true" pageId="9" pageNumber="349">eight</emphasis>
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. The shaft is obliquely flattened. The extremities are
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<emphasis bold="true" box="[770,827,897,915]" pageId="9" pageNumber="349">separated</emphasis>
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from the lateral surfaces by a narrow angle, as though capped with cartilage in life, as in the
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<taxonomicName baseAuthorityName="Cope" baseAuthorityYear="1869" box="[417,602,956,981]" genus="Pythonomorpha" pageId="9" pageNumber="349" rank="genus">
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<emphasis box="[417,602,956,981]" italics="true" pageId="9" pageNumber="349">Pythonomorpha</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph blockId="9.[48,828,174,1463]" pageId="9" pageNumber="349">
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Bones of the extremities are
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<emphasis box="[434,541,995,1013]" italics="true" pageId="9" pageNumber="349">very rare</emphasis>
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.
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<emphasis bold="true" box="[575,620,988,1007]" pageId="9" pageNumber="349">One</emphasis>
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fragment resembles the proximal end of a crocodilian tibia, and another is like the distal half or more of the tibia of the same type.
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</paragraph>
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<paragraph blockId="9.[48,828,174,1463]" pageId="9" pageNumber="349">
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There is considerable resemblance between the vertebrae of this genus and those of
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<taxonomicName authority="Owen, 1849" authorityName="Owen" authorityYear="1849" baseAuthorityName="Cope" box="[296,436,1119,1143]" class="Reptilia" family="Dyrosauridae" genus="Hyposaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodylia" pageId="9" pageNumber="349" phylum="Chordata" rank="genus">Hyposaurus</taxonomicName>
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,
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<emphasis box="[455,492,1119,1138]" italics="true" pageId="9" pageNumber="349">Ow</emphasis>
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., from Cretaceous
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<emphasis box="[726,758,1119,1138]" italics="true" pageId="9" pageNumber="349">No</emphasis>
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. 5,
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<emphasis bold="true" box="[804,828,1120,1138]" pageId="9" pageNumber="349">of</emphasis>
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New Jersey, but the relations of the axis and atlas in that genus are as in other
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<taxonomicName authorityName="Wagler" authorityYear="1830" baseAuthorityName="Cope" box="[246,365,1184,1207]" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Crocodilia" pageId="9" pageNumber="349" phylum="Chordata" rank="order">
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<emphasis box="[246,365,1184,1207]" italics="true" pageId="9" pageNumber="349">Crocodilia</emphasis>
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</taxonomicName>
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, and not like those seen
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<taxonomicName authorityName="Cope ED" authorityYear="1876" baseAuthorityName="Cope" class="Reptilia" family="Champsosauridae" genus="Champsosaurus" kingdom="Animalia" order="Choristodera" pageId="9" pageNumber="349" phylum="Chordata" rank="genus">
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<emphasis box="[712,826,1184,1208]" italics="true" pageId="9" pageNumber="349">
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<emphasis box="[50,127,1221,1235]" italics="true" pageId="9" pageNumber="349">iChampsosaurus</emphasis>
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</emphasis>
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</taxonomicName>
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. The absence of sacrum precludes the possibility of regarding this form as dinosaurian. It rather seems to share some rhynchocephalian characters with general amphiplatyan crocodilian resemblances. The shortness and robustness
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<emphasis box="[652,676,1314,1333]" italics="true" pageId="9" pageNumber="349">of</emphasis>
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the thoracic ribs
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<emphasis bold="true" box="[105,123,1346,1364]" pageId="9" pageNumber="349">is</emphasis>
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a feature quite unique, and reminds one of the
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<taxonomicName baseAuthorityName="Macartney" baseAuthorityYear="1802" box="[701,817,1347,1365]" class="Batrachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Batrachia" pageId="9" pageNumber="349" phylum="Chordata" rank="order">
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<emphasis box="[701,817,1347,1365]" italics="true" pageId="9" pageNumber="349">Batrachia</emphasis>
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</taxonomicName>
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. The teeth are unknown in their true relations, but there are several types in the collections which may
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<emphasis box="[459,483,1412,1430]" italics="true" pageId="9" pageNumber="349">be</emphasis>
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found
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<emphasis box="[566,588,1414,1430]" italics="true" pageId="9" pageNumber="349">to</emphasis>
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belong here. These are of the rhizodont character.
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</paragraph>
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<paragraph blockId="10.[144,923,177,1451]" pageId="10" pageNumber="350">
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<emphasis bold="true" box="[171,227,178,197]" pageId="10" pageNumber="350">As a</emphasis>
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summary of the preceding, I
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<emphasis box="[600,689,183,202]" italics="true" pageId="10" pageNumber="350">propose</emphasis>
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to refer the genus
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<taxonomicName authorityName="Cope ED" authorityYear="1876" baseAuthorityName="Cope" box="[150,332,211,236]" class="Sauropsida" family="Champsosauridae" genus="Champsosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Choristodera" pageId="10" pageNumber="350" phylum="Chordata" rank="genus">
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<emphasis box="[150,332,211,236]" italics="true" pageId="10" pageNumber="350">Champsosaurus</emphasis>
|
|
</taxonomicName>
|
|
to the order
|
|
<taxonomicName authorityName="Gunther" authorityYear="1867" baseAuthorityName="Cope" box="[496,692,210,235]" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rhynchocephalia" pageId="10" pageNumber="350" phylum="Chordata" rank="order">
|
|
<emphasis box="[496,692,210,235]" italics="true" pageId="10" pageNumber="350">Rhynchocephalia</emphasis>
|
|
</taxonomicName>
|
|
, provisionally. It differs very much from the typical genus of that order,
|
|
<taxonomicName authorityName="Gray" authorityYear="1831" baseAuthorityName="Cope" box="[787,910,243,268]" class="Reptilia" family="Sphenodontidae" genus="Sphenodon" kingdom="Animalia" order="Rhynchocephalia" pageId="10" pageNumber="350" phylum="Chordata" rank="genus">
|
|
<emphasis box="[787,910,243,268]" italics="true" pageId="10" pageNumber="350">Sphenodon</emphasis>
|
|
</taxonomicName>
|
|
,
|
|
<emphasis box="[145,166,276,294]" italics="true" pageId="10" pageNumber="350">in</emphasis>
|
|
the non-coössification of the sacral vertebrae, and non-union of the neural arches of the vertebra: with their centra, and the absence of
|
|
<emphasis bold="true" box="[180,215,341,359]" pageId="10" pageNumber="350">the</emphasis>
|
|
chordal perforation of the latter. It diifers from
|
|
<emphasis bold="true" box="[838,919,341,359]" pageId="10" pageNumber="350">the extinet</emphasis>
|
|
genera.
|
|
<taxonomicName authority="Cope, 1875" authorityName="Cope" authorityYear="1875" baseAuthorityName="Cope" box="[311,451,373,398]" class="Reptilia" family="Ophiacodontidae" genus="Clepsydrops" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pelycosauria" pageId="10" pageNumber="350" phylum="Chordata" rank="genus">Clepsydrops</taxonomicName>
|
|
and
|
|
<taxonomicName authority="Cope, 1875" authorityName="Cope" authorityYear="1875" baseAuthorityName="Cope" box="[528,626,372,392]" class="Amphibia" family="Archeriidae" genus="Cricotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthracosauria" pageId="10" pageNumber="350" phylum="Chordata" rank="genus">Cricotus</taxonomicName>
|
|
,
|
|
<emphasis box="[647,704,373,398]" italics="true" pageId="10" pageNumber="350">Cope</emphasis>
|
|
, in the last mentioned two characters. Ou these grounds it may constitute a distinct suborder, under the name of
|
|
<taxonomicName authorityName="Cope" authorityYear="1876" baseAuthorityName="Cope" box="[561,708,438,458]" class="Reptilia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Choristodera" pageId="10" pageNumber="350" phylum="Chordata" rank="order">
|
|
<emphasis box="[561,708,438,458]" italics="true" pageId="10" pageNumber="350">Choristodera</emphasis>
|
|
</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
<paragraph blockId="10.[144,923,177,1451]" pageId="10" pageNumber="350">
|
|
It is possible that the tooth, which I referred to anew genus and species, under the name of
|
|
<taxonomicName authority="Cope, 1876" authorityName="Cope" authorityYear="1876" baseAuthorityName="Cope" box="[486,764,503,529]" class="Reptilia" family="Troodontidae" genus="Paronychodon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Dinosauria" pageId="10" pageNumber="350" phylum="Chordata" rank="species" species="lacustris">Paronychodon lacustris</taxonomicName>
|
|
(Proeeedings Academy, 1876, October), may belong to one of those of the present genus. In that case the older generic name takes precedence of the later. I
|
|
<emphasis box="[334,382,607,626]" italics="true" pageId="10" pageNumber="350">may</emphasis>
|
|
add that some vertebrae of this genus have been figured and described by Dr. Leidy in the Transactions of the American Philos. Society, 1860,
|
|
<emphasis box="[575,664,667,685]" italics="true" pageId="10" pageNumber="350">without</emphasis>
|
|
name.
|
|
</paragraph>
|
|
<paragraph blockId="10.[144,923,177,1451]" pageId="10" pageNumber="350">
|
|
I
|
|
<emphasis box="[194,301,700,724]" italics="true" pageId="10" pageNumber="350">recognize</emphasis>
|
|
four species among the vertebrae, chiefly by characters observed in the cervical region. There is a great discrepancy of size among them, and the small ones may be
|
|
<emphasis box="[716,828,765,784]" italics="true" pageId="10" pageNumber="350">immature</emphasis>
|
|
.
|
|
</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |