Heterodontosuchus is a dubiousgenus of extinct phytosaur. The genus was first described from a fragmentary anterior section of the mandible found from the Henry Mountains in southeastern Utah, USA. More fossils were later found from Arizona.[1] The name Heterodontosuchus refers to the difference in size between anterior and posterior teeth on this mandible.[2] The teeth were compressed antero-posteriorly spaced closely together.[3] The genus is now thought to be synonymous with Nicrosaurus, and the type and only species, H. ganei, is regarded as a nomen dubium due to the fragmentary nature of the remains associated with it.
References
^von Huene, F. R. (1917). Notes on the age of the continental Triassic beds in North America with remarks on some fossil vertebrates. Proceedings of the United States National Museum69(2644):1-10.
^Lucas, F. A. (1898). Heterodontosuchus ganei. American Journal of Science4(6):399
^Lees, J. H. (1907). The skull of Paleorhinus, a Wyoming phytosaur. Journal of Geology15:121-151.