.91" Tyrannosaur Tooth - Judith River Formation

This is a .91" Tyrannosaur tooth from the Judith River Formation of Montana. This formation is approximately 70 million years old, or about 5 million years old than the Hell Creek Formation which produces T-Rex.

A tooth of this size would have probably come from a juvenile/sub-adult animal. The serrations are pretty worn but most at least on the inner edge of visible. Comes with an acrylic display case.

There are three described Tyrannosaurs from the Two Medicine Formation (Judith River Group), Albertosaurus, Gorgosaurus and Daspletosaurus. Research done on teeth from these three Tyrannosaurs has concluded that isolated teeth are statistically impossible to assign to a specific genre because they are so similar.

Morphometry of the teeth of western North American tyrannosaurids and its applicability to quantitative classification