1.5" Tyrannosaur Tooth With Crocodile Scute - Judith River Formation

This is a very nice 1.5" Tyrannosaur tooth and a Crocodilian (Leidyosuchus) scute, in the rock it was found in, from the Judith River Formation, Montana. This specimen also contains a shell and bone and tooth fragments that are best seen under magnification. This is a nicely preserved tooth with excellent enamel. The serrations nearly perfect on both edges.

Scutes are hard bony plates that cover the body of crocodilians and protect them. They are easiest seen on tails of modern alligators as bony projections running down the top of the tail.

There is a repaired crack with some stabilization to the fossil.

There are three described Tyrannosaurs from the Two Medicine Formation & Judith River Formation; 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 genus because they are so similar.

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

Albertosaurus, Gorgosaurus or Daspletosaurus, Leidyosuchus sp.
Hill County, Montana
Judith River Formation
1.5" tooth (straightline measurement), 1.5 x 1.4" rock
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