Serrated 1.15" Tyrannosaur Premax Tooth - Montana

This is a fine quality, serrated 1.15" Tyrannosaur premax 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.

The thickness and rounded cross-section indicate this is a premax tooth from at the front of the jaw. Excellent enamel preservation, good serrations and just some minor feeding wear to this tooth. Comes in 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. I've linked to the research paper below.

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