A new specimen of an early crocodylomorph (cf. Sphenosuchus sp.) from the Upper Triassic Chinle Formation of Petrified Forest National Park, Arizona
- 20 June 1991
- journal article
- research article
- Published by Taylor & Francis in Journal of Vertebrate Paleontology
- Vol. 11 (2) , 198-212
- https://doi.org/10.1080/02724634.1991.10011387
Abstract
An associated skeleton of a crocodylomorph from the Painted Desert of Petrified Forest National Park is the second relatively complete specimen of a crocodylomorph described from the Upper Triassic Chinle Formation. The specimen lacks cranial and hind-limb elements commonly used for classification of crocodylomorphs, so character states of other features, notably armor, pelvic, tooth, and dentary morphology, are evaluated. Phylogenetic analysis of the Triassic/Jurassic non-crocodyliform crocodylomorphs (“sphenosuchians”) indicates that the new specimen is most similar to the Early Jurassic genus Sphenosuchus. Some of the features that ally the new specimen with Sphenosuchus may be artifacts of scaling, as the new specimen and the holotype of S. acutus are the two largest specimens of members of this group.Keywords
This publication has 0 references indexed in Scilit: