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New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America

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dc.creatorCadena, Edwin Albertospa
dc.creatorBloch, Jonathan I.spa
dc.creatorJaramillo, Carlos A.spa
dc.date.accessioned2020-08-19T14:39:57Z
dc.date.available2020-08-19T14:39:57Z
dc.date.created2010-03-24spa
dc.description.abstractA new pleurodiran turtle, Cerrejonemys wayuunaiki, from the middle to upper Paleocene, Cerrejón Formation of Colombia, is described on the basis of a complete skull, lower jaw, partial carapace and plastron, two cervical vertebrae, a right coracoid, and both pelvic girdles. Cerrejonemys wayuunaiki shares a suite of diagnostic characteristics with Podocnemididae, including a fully developed, medially extensive cavum pterygoidei that is almost completely covered by the prolonged posterolateral flanges of the pterygoid, a posterior elongation of the secondary roofing of the skull composed of the parietal and the quadratojugal covering two-thirds or more of the cavum tympani, a dentary covered laterally by the surangular, and no contact between the exoccipital and quadrate. Cerrejonemys wayuunaiki is unique among podocnemidids in having ridges on the ventral margin of the dentary, dentaries that form an acute angle at the fused symphysis, and a relatively thick (up to 35 mm) carapace and plastron. Results from a cladistic analysis of panpodocnemidids indicate that C. wayuunaiki is the sister taxon of the genus Podocnemis, which ranges from the Miocene to Recent, implying that stem of Podocnemis spp. were inhabiting tropical South America early in the Paleogene.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1080/02724631003621946
dc.identifier.issnISSN: 0272-4634
dc.identifier.issnEISSN: 1937-2809
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/26644
dc.language.isoengspa
dc.publisherSociety of Vertebrate Paleontologyspa
dc.publisherTaylor & Francis Groupspa
dc.relation.citationEndPage382
dc.relation.citationIssueNo. 2
dc.relation.citationStartPage367
dc.relation.citationTitleJournal of Vertebrate Paleontology
dc.relation.citationVolumeVol. 30
dc.relation.ispartofJournal of Vertebrate Paleontology, ISSN: 0272-4634;EISSN: 1937-2809, Vol.30, No.2 (2010); pp. 367-382spa
dc.relation.urihttps://www.tandfonline.com/doi/abs/10.1080/02724631003621946spa
dc.rights.accesRightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.accesoRestringido (Acceso a grupos específicos)spa
dc.sourceJournal of Vertebrate Paleontologyspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordBonesspa
dc.subject.keywordSkullspa
dc.subject.keywordFossilsspa
dc.subject.keywordRoofingspa
dc.subject.keywordTaxaspa
dc.subject.keywordVertebrate paleontologyspa
dc.subject.keywordJawspa
dc.subject.keywordSpinespa
dc.subject.keywordGeologyspa
dc.titleNew Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South Americaspa
dc.title.TranslatedTitleNueva Tortuga Podocnemidid (Testudines: Pleurodira) del Paleoceno Medio-Superior de Sudaméricaspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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