Bargain .73" Tyrannosaur Tooth - Montana

This is a fairly worn Tyrannosaur tooth from the Two Medicine Formation of Montana. The tip is broken off an most of the enamel is worn.

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. This means the best we can do on identification is this is a premax tooth of one of these Tyrannosaurs. I've linked to the research paper below.

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