Project 2550: J .M. Leardi, D. Pol, J. M. Clark. 2017. Detailed anatomy of the braincase of Macelognathus vagans Marsh, 1884 (Archosauria, Crocodylomorpha) using high resolution tomography and new insights on basal crocodylomorph phylogeny. PeerJ:1-55. (In Press)
Specimen: † Macelognathus vagans (LACM:5572/150148)
View: Lateral and dorsal

Abstract

Macelognathus vagans Marsh, 1884 from the Late Jurassic Morrison Fm. of Wyoming was originally described as a dinosaur by Marsh and in 1971 Ostrom suggested crocodilian affinities. In 2005, Göhlich and collaborators identified new material of this species from Colorado as a basal crocodylomorph. However, a partial skull found in association with mandibular and postcranial remains was not described. Due to the small size and delicate structures within the braincase, micro CT studies were performed on this specimen. The new anatomical information was incorporated in a phylogenetic dataset, expanding both character and taxon sampling.


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Article DOI: 10.7717/peerj.2801

Project DOI: 10.7934/P2550, http://dx.doi.org/10.7934/P2550
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