1.56" Tyrannosaur Tooth - Interesting Wear Pattern

This is a nicely preserved Tyrannosaurid tooth from the Two Medicine Formation (Judith River Group) 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.

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. I've linked to the research paper below.

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

This tooth is 1.56" long and has great enamel preservation and some interesting wear patterns to the tip where the tooth was rubbing against another tooth in it's mouth. Most of the serrations have been worn away with the exception of some near the base of the tooth. There were a few crack repairs and small gap fills on the inner side of the tooth near the base but it's pretty minor.