A new species of Allodaposuchus (Eusuchia, Crocodylia) from the Maastrichtian (Late Cretaceous) of Spain: phylogenetic and paleobiological implications

PeerJ
Alejandro BlancoAlbert G Sellés

Abstract

Background. The Late Cretaceous is a keystone period to understand the origin and early radiation of Crocodylia, the group containing all extant lineages of crocodilians. Among the taxa described from the latest Cretaceous of Europe, the genus Allodaposuchus is one of the most common but also one of the most controversial. However, because of its fragmentary record, several issues regarding its phylogenetic emplacement and its ecology remain unsolved or unknown. The discovery of a single specimen attributed to Allodaposuchus, represented by both cranial and postcranial remains, from the Casa Fabà site (Tremp Basin, NE Spain) in the lower red unit of the Tremp Fm. (early Maastrichtian, Late Cretaceous) offers a unique opportunity to deepen in the phylogenetic relationships of the group and its ecological features. Methods. The specimen is described in detail, and CT scan of the skull is performed in order to study the endocranial morphology as well as paratympanic sinuses configuration. In addition, myological and phylogenetic analyses are also carried out on the specimen for to shed light in ecological and phylogenetic issues, respectively. Results. The specimen described herein represents a new species, Allodaposuchus hulki sp...Continue Reading

References

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Mar 29, 2014·The Journal of Experimental Biology·Hilary S BiermanDaniel J Tollin

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Citations

Dec 29, 2019·Scientific Reports·Ninon RobinXavier Valentin
Nov 20, 2020·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Marcos V DumontCarlos Eduardo Maia de Oliveira
Nov 27, 2021·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Yohan Pochat-CottillouxRomain Amiot

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