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

A 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 s...

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Autores:
Tipo de recurso:
Fecha de publicación:
2010
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/26644
Acceso en línea:
https://doi.org/10.1080/02724631003621946
https://repository.urosario.edu.co/handle/10336/26644
Palabra clave:
Bones
Skull
Fossils
Roofing
Taxa
Vertebrate paleontology
Jaw
Spine
Geology
Rights
License
Restringido (Acceso a grupos específicos)
id EDOCUR2_d7389f9efb8bc01a5ce532d799d9df4e
oai_identifier_str oai:repository.urosario.edu.co:10336/26644
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
spelling 8823500660034800ff9-872f-4720-a8b3-3caac9e861c1-1ae9df4c2-0a18-4117-bf1d-4bf6fb9ef059-12020-08-19T14:39:57Z2020-08-19T14:39:57Z2010-03-24A 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.application/pdfhttps://doi.org/10.1080/02724631003621946ISSN: 0272-4634EISSN: 1937-2809https://repository.urosario.edu.co/handle/10336/26644engSociety of Vertebrate PaleontologyTaylor & Francis Group382No. 2367Journal of Vertebrate PaleontologyVol. 30Journal of Vertebrate Paleontology, ISSN: 0272-4634;EISSN: 1937-2809, Vol.30, No.2 (2010); pp. 367-382https://www.tandfonline.com/doi/abs/10.1080/02724631003621946Restringido (Acceso a grupos específicos)http://purl.org/coar/access_right/c_16ecJournal of Vertebrate Paleontologyinstname:Universidad del Rosarioreponame:Repositorio Institucional EdocURBonesSkullFossilsRoofingTaxaVertebrate paleontologyJawSpineGeologyNew Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South AmericaNueva Tortuga Podocnemidid (Testudines: Pleurodira) del Paleoceno Medio-Superior de SudaméricaarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Cadena, Edwin AlbertoBloch, Jonathan I.Jaramillo, Carlos A.10336/26644oai:repository.urosario.edu.co:10336/266442021-06-03 00:49:56.794https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co
dc.title.spa.fl_str_mv New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
dc.title.TranslatedTitle.spa.fl_str_mv Nueva Tortuga Podocnemidid (Testudines: Pleurodira) del Paleoceno Medio-Superior de Sudamérica
title New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
spellingShingle New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
Bones
Skull
Fossils
Roofing
Taxa
Vertebrate paleontology
Jaw
Spine
Geology
title_short New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
title_full New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
title_fullStr New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
title_full_unstemmed New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
title_sort New Podocnemidid Turtle (Testudines: Pleurodira) from the Middle-Upper Paleocene of South America
dc.subject.keyword.spa.fl_str_mv Bones
Skull
Fossils
Roofing
Taxa
Vertebrate paleontology
Jaw
Spine
Geology
topic Bones
Skull
Fossils
Roofing
Taxa
Vertebrate paleontology
Jaw
Spine
Geology
description A 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.
publishDate 2010
dc.date.created.spa.fl_str_mv 2010-03-24
dc.date.accessioned.none.fl_str_mv 2020-08-19T14:39:57Z
dc.date.available.none.fl_str_mv 2020-08-19T14:39:57Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1080/02724631003621946
dc.identifier.issn.none.fl_str_mv ISSN: 0272-4634
EISSN: 1937-2809
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/26644
url https://doi.org/10.1080/02724631003621946
https://repository.urosario.edu.co/handle/10336/26644
identifier_str_mv ISSN: 0272-4634
EISSN: 1937-2809
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationEndPage.none.fl_str_mv 382
dc.relation.citationIssue.none.fl_str_mv No. 2
dc.relation.citationStartPage.none.fl_str_mv 367
dc.relation.citationTitle.none.fl_str_mv Journal of Vertebrate Paleontology
dc.relation.citationVolume.none.fl_str_mv Vol. 30
dc.relation.ispartof.spa.fl_str_mv Journal of Vertebrate Paleontology, ISSN: 0272-4634;EISSN: 1937-2809, Vol.30, No.2 (2010); pp. 367-382
dc.relation.uri.spa.fl_str_mv https://www.tandfonline.com/doi/abs/10.1080/02724631003621946
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.rights.acceso.spa.fl_str_mv Restringido (Acceso a grupos específicos)
rights_invalid_str_mv Restringido (Acceso a grupos específicos)
http://purl.org/coar/access_right/c_16ec
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Society of Vertebrate Paleontology
Taylor & Francis Group
dc.source.spa.fl_str_mv Journal of Vertebrate Paleontology
institution Universidad del Rosario
dc.source.instname.none.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.none.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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