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Texas tyrannosaurs (was Re: paleoart idea!)



The Javelina tyrannosaurid is
known from a maxilla and isolated teeth - the maxilla is certainly more
Tyrannosaurus/Tarbosaurus/Daspletosaurus-like than Albertosaurus-like,
but it could be a different form.

If this is the same maxilla from the Tornillo Formation of Texas (catalogued as TMM 4/436-1) that has sometimes been referred to _T. rex_, then the maxilla is too short to belong to _Tyrannosaurus_. This is from Carpenter (1992).


Reference

Carpenter, K. (1992). Tyrannosaurids (Dinosauria) of Asia and North America. In: Mateer, N. and Chen, P. (Eds.). Aspects of Nonmarine Cretaceous Geology. China Ocean Press, p. 250-268.



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