.91" Partial Tyrannosaurid Tooth - Montana

This is a partial Tyrannosaurid tooth from the Two Medicine Formation (Judith River Group) of Montana. The tip is missing but it has decent enamel and fine inner serrations. There are three described Tyrannosaurids from the Two Medicine Formation (Judith River Group), Albertosaurus, Gorgosaurus and Daspletosaurus. Their teeth of notoriously hard to tell apart with very minor differences. It's not uncommon for expert on the material look at the exact same tooth and both put a different ID on it. So I'm simply going to label it as Tyrannosaurid.