Preliminary description of coelophysoids (Dinosauria:Theropoda) from the Upper Triassic (Revueltian:early-mid Norian) Snyder quarry, north-central New Mexico

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
Andrew B. Heckert Ph.D., Assistant Professor of Geology (Creator)
Institution
Appalachian State University (ASU )
Web Site: http://www.library.appstate.edu/

Abstract: The Upper Triassic Snyder quarry is the second-most productive theropod locality in the Chinle Group. Skull and postcranialelements, particularly tibiae, collected from the Snyder quarry during the last three field seasons demonstrate the presence of at least four individuals of two taxa. The smaller theropod strongly resembles, but is distinct from, the holotype of Eucoelophysis baldwini Sullivan and Lucas and represents either a sexual dimorph or, more likely, a new species of Eucoelophysis. The larger theropod is represented by a single, incomplete fused tibia-fibula-astragalus-calcaneum. Most striking about this taxon is the proximal fusion of the tibia and fibula. These theropods are a small fraction of a rich and diverse assemblage of Upper Triassic vertebrates and invertebrates from the most productive Chinle Group vertebrate fossil assemblage discovered in the last 50 years.

Additional Information

Publication
Heckert, A.B., Zeigler, K.E., Lucas, S.G., Rinehart, L.F., and Harris, J.D., (2000) Preliminary description of coelophysoids (Dinosauria:Theropoda) from the Upper Triassic (Revueltian:early-mid Norian) Snyder quarry, north-central New Mexico. New Mexico Museum of Natural History and Science Bulletin 17 (Dinosaurs of New Mexico), p. 27-32. (ISSN 1524-4156) Archived in NC DOCKS with permission of the editor. The version of record is available at: http://econtent.unm.edu/
Language: English
Date: 2000