New occurrence of Trilophosaurus (Reptilia: Archosauromorpha) from the Upper Triassic of West Texas and its biochronological significance
Andrew B. Heckert, Spencer G. Lucas, Robert Kahle, and Kate Zeigler

Abstract:

We document a rich Upper Triassic bonebed in Borden County, Texas in either the uppermost Tecovas Formation or, more likely, the Trujillo Formation of the Chinle Group, that represents one of the highest stratigraphic occurrences of the aberrant archosauromorph reptile Trilophosaurus. The associated fauna includes indeterminate coprolites, unionid bivalves, osteichthyans, indeterminate reptiles, a possible ornithischian dinosaur, and the putative theropod dinosaur Spinosuchus caseanus Huene,


Citation:

  1. Heckert, Andrew B.; Lucas, Spencer G.; Kahle, Robert; Zeigler, Kate, 2001, New occurrence of Trilophosaurus (Reptilia: Archosauromorpha) from the Upper Triassic of West Texas and its biochronological significance, in: Geology of the Llano Estacado, Lucas, Spencer G.; Ulmer-Scholle, Dana S., New Mexico Geological Society, Guidebook, 52nd Field Conference, pp. 115-122.

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