.84" Tyrannosaur Tooth - Montana

This is a .84" long Tyrannosaur tooth from the Hell Creek Formation of Montana. It has a some weathering to the surface so has lost the shiny smooth enamel layer and the serrations are faint, but visible. It comes in an acrylic display case.

The tooth is likely from Tyrannosaurus rex, likely a juvenile. It is less likely that it is from a large Nanotyrannus. There is a hot debate among paleontologists about whether Nanotyrannus and Tyrannosaurus rex (T-Rex) are really the same species, with Nanotyrannus representing juveniles. Recent finds that are soon to be published should put this debate to rest, definitively proving that Nanotyrannus is in fact a separate genus and valid genus. Nano teeth tend to be much more finely serrated, and much thinner/blade like t-rex teeth, in addition to being smaller.