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Northernmost tip of South America: Giant testudinids, chelids, and podocnemidids from the castilletes formation, Colombia

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dc.creatorCadena, Edwin Alberto
dc.date.accessioned2020-08-19T14:39:58Z
dc.date.available2020-08-19T14:39:58Z
dc.date.created2015-02-01spa
dc.description.abstractHere we describe the northernmost South American record of fossil turtles from the late early Miocene to early middle Miocene of the Castilletes Formation, on the Alta Guajira Peninsula, Cocinetas basin, Colombia. Turtles in the lower segment of the Castilletes Formation (c. 16.33 Ma) are pleurodires or side-necked turtles belonging to Chelus colombiana Wood, Chelus sp., and Podocnemididae incertae sedis, and cryptodires or hidden-necked turtles attributed to Chelonoidis sp., all of them characterized by the large size of their shells, 1 meter or more total length. The middle segment of the formation (c. 14 Ma) contains specimens of Podocnemididae incertae sedis and Chelonoidis sp. The turtle fauna from Castilletes share taxa with faunas from La Venta (middle—late Miocene of Colombia), Urumaco, and Western Amazonia (late Miocene from Venezuela, Brazil, and Peru); all of these records indicate a wider geographical distribution for podocnemidids, chelids, and testudinids of tropical South America during the early to middle Miocene. The large size of the fossils described here also confirms that gigantism was characteristic of South American tropical turtles during the early Miocene, a trend that lasted at least from the Paleocene to the Pliocene in different lineages.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.5710/AMGH.10.11.2014.2835
dc.identifier.issnISSN: 0002-7014
dc.identifier.issnEISSN: 1851-8044
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/26653
dc.language.isoengspa
dc.publisherAsociación Paleontológica Argentinaspa
dc.relation.citationEndPage203
dc.relation.citationIssueNo. 2
dc.relation.citationStartPage188
dc.relation.citationTitleAmeghiniana
dc.relation.citationVolumeVol. 52
dc.relation.ispartofAmeghiniana, ISSN: 0002-7014; EISSN: 1851-8044, Vol.52, No.2 (2015); pp. 188-203spa
dc.relation.urihttp://www.scopus.com/inward/record.url?scp=84929245778&partnerID=8YFLogxKspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceAmeghinianaspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordChelidaespa
dc.subject.keywordColombiaspa
dc.subject.keywordMiocenespa
dc.subject.keywordPodocnemididaespa
dc.subject.keywordTestudinidaespa
dc.subject.keywordTurtlesspa
dc.titleNorthernmost tip of South America: Giant testudinids, chelids, and podocnemidids from the castilletes formation, Colombiaspa
dc.title.TranslatedTitlePunta más septentrional de América del Sur: Testudínidos, quelidos y podocnemididos gigantes de la formación castilletes, Colombiaspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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