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1 May 2016 Fossil Crocodilians from the High Guajira Peninsula of Colombia: Neogene Faunal Change in Northernmost South America
Jorge W. Moreno-Bernal, Jason Head, Carlos A. Jaramillo
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Abstract

The La Guajira Peninsula, Colombia, has a continuous vertebrate fossil record that includes both the late early-early middle Miocene and the Pliocene. Crocodilians from the early to early middle Miocene Jimol and Castilletes formations include gavialoids, recovered from both coastal and shallow marine deposits, and caimanines representing early records of the specialized caimanine taxa Purussaurus and Mourasuchus. Crocodyloid specimens from the Pliocene Ware Formation are assigned to Crocodylus and represent one of the oldest occurrences of the genus in the New World. Records from the La Guajira Peninsula suggest that diverse crocodilian assemblages were already established by the late early Miocene, including several widely distributed lineages that persisted for several million years. Crocodylus is a recent immigrant to South America that occupied habitats left vacant by the extinction of several crocodilian lineages.

© by the Society of Vertebrate Paleontology
Jorge W. Moreno-Bernal, Jason Head, and Carlos A. Jaramillo "Fossil Crocodilians from the High Guajira Peninsula of Colombia: Neogene Faunal Change in Northernmost South America," Journal of Vertebrate Paleontology 36(3), (1 May 2016). https://doi.org/10.1080/02724634.2016.1110586
Received: 31 January 2015; Accepted: 1 September 2015; Published: 1 May 2016
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