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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 Principales: Cadena, Edwin-Alberto, Jaramillo, Carlos A
Formato: Artículo (Article)
Lenguaje:Inglés (English)
Publicado: Asociación Paleontológica Argentina 2015
Materias:
Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
Acceso en línea:https://repository.urosario.edu.co/handle/10336/28135
id ir-10336-28135
recordtype dspace
spelling ir-10336-281352022-05-02T12:37:21Z 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 Cadena, Edwin-Alberto Jaramillo, Carlos A Turtles Testudinidae Chelidae Podocnemididae Miocene 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 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. 2015 2020-08-19T14:46:00Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion ISSN: 1851-8044 https://repository.urosario.edu.co/handle/10336/28135 eng info:eu-repo/semantics/openAccess application/pdf Asociación Paleontológica Argentina instname:Universidad del Rosario
institution EdocUR - Universidad del Rosario
collection DSpace
language Inglés (English)
topic Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
spellingShingle Turtles
Testudinidae
Chelidae
Podocnemididae
Miocene
Colombia
Cadena, Edwin-Alberto
Jaramillo, Carlos A
Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, 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.
format Artículo (Article)
author Cadena, Edwin-Alberto
Jaramillo, Carlos A
author_facet Cadena, Edwin-Alberto
Jaramillo, Carlos A
author_sort Cadena, Edwin-Alberto
title Miocene turtles from the northernmost tip of South America; giant tortoises, chelids, and podocnemidids from Castilletes Formation, 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
publisher Asociación Paleontológica Argentina
publishDate 2015
url https://repository.urosario.edu.co/handle/10336/28135
_version_ 1740172410237222912
score 12,131701

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