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The first Oligocene sea turtle (Pan-Cheloniidae) record of South America

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dc.creatorCadena, Edwin Alberto
dc.creatorAbella, Juanspa
dc.creatorD Gregori, Mariaspa
dc.date.accessioned2020-08-19T14:40:54Z
dc.date.available2020-08-19T14:40:54Z
dc.date.created2018-03-23spa
dc.description.abstractThe evolution and occurrence of fossil sea turtles at the Pacific margin of South America is poorly known and restricted to Neogene (Miocene/Pliocene) findings from the Pisco Formation, Peru. Here we report and describe the first record of Oligocene (late Oligocene, ?24 Ma) Pan-Cheloniidae sea turtle remains of South America. The fossil material corresponds to a single, isolated and well-preserved costal bone found at the Montañita/Olón locality, Santa Elena Province, Ecuador. Comparisons with other Oligocene and extant representatives allow us to confirm that belongs to a sea turtle characterized by: lack of lateral ossification, allowing the dorsal exposure of the distal end of ribs; dorsal surface of bone sculptured, changing from dense vermiculation at the vertebral scute region to anastomosing pattern of grooves at the most lateral portion of the costal. This fossil finding shows the high potential that the Ecuadorian Oligocene outcrops have in order to explore the evolution and paleobiogeography distribution of sea turtles by the time that the Pacific and the Atlantic oceans were connected via the Panama basin.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.7717/peerj.4554
dc.identifier.issnISSN: 2167-8359
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27068
dc.language.isoengspa
dc.publisherPeerJspa
dc.relation.citationStartPagee4554
dc.relation.citationTitlePeerJ
dc.relation.citationVolumeVol. 6
dc.relation.ispartofPeerJ, ISSN: 2167-8359, VOL.6 (2018); pp. e4554spa
dc.relation.urihttps://peerj.com/articles/4554/spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourcePeerJspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordEcuadorspa
dc.subject.keywordMontañita/Olónspa
dc.subject.keywordPaleobio geographyspa
dc.subject.keywordTestudinesspa
dc.titleThe first Oligocene sea turtle (Pan-Cheloniidae) record of South Americaspa
dc.title.TranslatedTitleEl primer registro de tortugas marinas del Oligoceno (Pan-Cheloniidae) de América del Surspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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