This Specimen has been sold.
1.54" Tyrannosaur Tooth - Judith River Formation, Montana
This is a 1.54" 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.
The tooth is a dark grey/black color and the enamel is worn. It's possibly a digested tooth given the enamel wear patterns. Fine serrations present along both edges of the blade. Comes with a riker mount 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