Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia

ere 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...

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Detalles Bibliográficos
Autores: Cadena, Edwin Alberto, Jaramillo, Carlos A
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Colombia
Institución:Universidad del Rosario
Repositorio:Repositorio EdocUR - U. Rosario
Idioma:inglés
OAI Identifier:oai:repository.urosario.edu.co:10336/28135
Acceso en línea:https://repository.urosario.edu.co/handle/10336/28135
Access Level:acceso abierto
Palabra clave:Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
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network_acronym_str CO
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repository_id_str
spelling Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, ColombiaTortugas del Mioceno del extremo norte de América del Sur; Tortugas gigantes, quelidos y podocnemididos de la Formación Castilletes, ColombiaCadena, Edwin AlbertoJaramillo, Carlos ATurtlesTestudinidaeChelidaePodocnemididaeMioceneColombiaere 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.Asociación Paleontológica Argentina20152020-08-19T14:46:00Zinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfISSN: 1851-8044https://repository.urosario.edu.co/handle/10336/28135Ameghinianareponame:Repositorio EdocUR - U. Rosarioinstname:Universidad del Rosarioinstacron:Universidad del Rosarioenghttp://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2835info:eu-repo/semantics/openAccess2022-05-02T07:37:21Z
dc.title.none.fl_str_mv Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
Tortugas del Mioceno del extremo norte de América del Sur; Tortugas gigantes, quelidos y podocnemididos de la Formación Castilletes, Colombia
title Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
spellingShingle Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
Cadena, Edwin Alberto
Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
title_short Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
title_full Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
title_fullStr Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
title_full_unstemmed Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
title_sort Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, Colombia
dc.creator.none.fl_str_mv Cadena, Edwin Alberto
Jaramillo, Carlos A
author Cadena, Edwin Alberto
author_facet Cadena, Edwin Alberto
Jaramillo, Carlos A
author_role author
author2 Jaramillo, Carlos A
author2_role author
dc.subject.none.fl_str_mv Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
topic Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
description ere 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.
publishDate 2015
dc.date.none.fl_str_mv 2015
2020-08-19T14:46:00Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv ISSN: 1851-8044
https://repository.urosario.edu.co/handle/10336/28135
identifier_str_mv ISSN: 1851-8044
url https://repository.urosario.edu.co/handle/10336/28135
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2835
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
dc.source.none.fl_str_mv Ameghiniana
reponame:Repositorio EdocUR - U. Rosario
instname:Universidad del Rosario
instacron:Universidad del Rosario
instname_str Universidad del Rosario
instacron_str Universidad del Rosario
institution Universidad del Rosario
reponame_str Repositorio EdocUR - U. Rosario
collection Repositorio EdocUR - U. Rosario
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score 15,81155

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