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Título: Bioerosion trace fossils on bones of the Cretaceous South American theropod Buitreraptor gonzalezorum Makovicky, Apesteguía and Agnolín, 2005 (Deinonychosauria)
Autor(es): Gianechini, Federico Abel
de Valais, Silvina
Fecha de publicación: 2015
Editorial: Taylor & Francis
Citación: Gianechini, Federico Abel y de Valais, Silvina (2015) Bioerosion trace fossils on bones of the Cretaceous South American theropod Buitreraptor gonzalezorum Makovicky, Apesteguía and Agnolín, 2005 (Deinonychosauria). Taylor & Francis; Historical Biology: An International Journal of Paleobiology; 28 (4); 533-549
Revista: Historical Biology: An International Journal of Paleobiology
Abstract: The ichnological record provides valuable information on the lifestyle, behaviour, and other palaeobiological and palaeoecological aspects of the biota. Here, we describe an interesting case of bioerosion trace fossils in bones of Buitreraptor gonzalezorum Makovicky, Apesteguı´a and Agnolı´n, 2005, a deinonychosaurian theropod from the fossiliferous locality of La Buitrera, Rı´o Negro, Patagonia, Argentina. The trace fossils are morphologically diverse and preserved in a great percentage of the skeleton, including the jaw, vertebrae and limbs. Four main groups of trace fossils have been informally named as Parallel-Edge Furrows, Overlapped Grooves, Punctures and Lined. Parallel-Edge Furrows are in turn subdivided into four subgroups: isolated furrows, parallel pairs, opposed pairs and a combination of parallel and opposed pairs. The bioerosion trace fossils were probably generated by scavenging activities, and the semi-articulated preservation of the skeleton and the small size of each individual trace indicate small-sized tracemakers. Mammals are the main candidates although some traces may have been generated by crocodyliforms and insects such as dermestids and termites. This evidence provides additional information about palaeoenvironmental conditions, taphonomic processes, taxonomic diversity and ecological relationships that characterised this part of northern Patagonia at Early Cretaceous times.
Resumen: -
URI: https://www.tandfonline.com/doi/full/10.1080/08912963.2014.991726
http://rid.unrn.edu.ar/handle/20.500.12049/5909
Identificador DOI: https://doi.org/10.1080/08912963.2014.991726
ISSN: 0891-2963
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