An Additional Baurusuchid from the Cretaceous of Brazil with Evidence of Interspecific Predation among Crocodyliformes

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGodoy, Pedro L.
dc.creatorMontefeltro, Felipe C.
dc.creatorNorell, Mark A.
dc.creatorLanger, Max C.
dc.date2014-12-03T13:08:50Z
dc.date2016-10-25T20:09:20Z
dc.date2014-12-03T13:08:50Z
dc.date2016-10-25T20:09:20Z
dc.date2014-05-08
dc.date.accessioned2017-04-06T06:14:52Z
dc.date.available2017-04-06T06:14:52Z
dc.identifierPlos One. San Francisco: Public Library Science, v. 9, n. 5, 12 p., 2014.
dc.identifier1932-6203
dc.identifierhttp://hdl.handle.net/11449/111621
dc.identifierhttp://acervodigital.unesp.br/handle/11449/111621
dc.identifier10.1371/journal.pone.0097138
dc.identifierWOS:000338213300124
dc.identifierWOS000338213300124.pdf
dc.identifierhttp://dx.doi.org/10.1371/journal.pone.0097138
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/922396
dc.descriptionA new Baurusuchidae (Crocodyliformes, Mesoeucrocodylia), Aplestosuchus sordidus, is described based on a nearly complete skeleton collected in deposits of the Adamantina Formation (Bauru Group, Late Cretaceous) of Brazil. The nesting of the new taxon within Baurusuchidae can be ensured based on several exclusive skull features of this clade, such as the quadrate depression, medial approximation of the prefrontals, rostral extension of palatines (not reaching the level of the rostral margin of suborbital fenestrae), cylindrical dorsal portion of palatine bar, ridge on the ectopterygoid-jugal articulation, and supraoccipital with restricted thin transversal exposure in the caudalmost part of the skull roof. A newly proposed phylogeny of Baurusuchidae encompasses A. sordidus and recently described forms, suggesting its sixter-taxon relationship to Baurusuchus albertoi, within Baurusuchinae. Additionally, the remains of a sphagesaurid crocodyliform were preserved in the abdominal cavity of the new baurusuchid. Direct fossil evidence of behavioral interaction among fossil crocodyliforms is rare and mostly restricted to bite marks resulting from predation, as well as possible conspecific male-to-male aggression. This is the first time that a direct and unmistaken evidence of predation between different taxa of this group is recorded as fossils. This discovery confirms that baurusuchids were top predators of their time, with sphagesaurids occupying a lower trophic position, possibly with a more generalist diet.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherPublic Library Science
dc.relationPLOS ONE
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleAn Additional Baurusuchid from the Cretaceous of Brazil with Evidence of Interspecific Predation among Crocodyliformes
dc.typeOtro


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