Skip navigation
Por favor, use este identificador para citar o enlazar este ítem: http://rid.unrn.edu.ar/handle/20.500.12049/5924

Título: A predation attempt in a Late Cretaceous pleurodire turtle from Patagonia
Autor(es): de Valais, Silvina
Díaz Martínez, Ignacio
Citton, Paolo
Maniel, Ignacio
de la Fuente, Marcelo
Fecha de publicación: 2020
Editorial: Elsevier Science
Citación: de Valais, S., Díaz-Martínez, I., Citton, P., Maniel, I. y de la Fuente, M. (2020). A predation attempt in a Late Cretaceous pleurodire turtle from Patagonia. Cretaceous Research; 107; 104290
Revista: Cretaceous Research
Abstract: In the present contribution, we report the evidence of a predation attempt against a semi-aquatic pleurodire turtle who survived the attack. The almost complete shell of this adult turtle, the holotype of Rionegrochelys caldieroi, was found in the Upper Cretaceous Plottier Formation, El Anfiteatro area, Río Negro province, Patagonia. The shell displays two distinct but synchronously produced trace fossils in the anterior right portion of the plastron. One of the trace fossils is semicircular and indicates where the bone has been broken during the attack, as a consequence of a bite. The other one reflects the predator's teeth morphology, and suggests a crocodyliform as the best candidate. Computed tomography analysis reveals regenerated tissue associated with both trace fossils, indicating healing of the wound. No vital organ was seriously injured during the attack, and the turtle survived, lacking a fragment of the shell. Taking into account the evidence in the fossil record, the unambiguous predator-prey relationship between crocodyliforms and turtles is present from at least the Late Jurassic, and the Rionegrochelys caldieroi holotype and their trace fossils is a new evidence of this interaction.
Resumen: -
URI: https://www.sciencedirect.com/science/article/pii/S0195667119301326
http://rid.unrn.edu.ar/handle/20.500.12049/5924
Identificador DOI: https://doi.org/10.1016/j.cretres.2019.104290
ISSN: 1095-998X
0195-6671
Aparece en las colecciones: Artículos

Archivos en este ítem:
Archivo Descripción Tamaño Formato  
de Valais et al 2020-A predation attempt in a L K pleurodire turtle from Patagonia.pdf
  Hasta el 01-01-2024
5,62 MBAdobe PDF    Solicitar una copia

Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons