Worn .55" Tyrannosaur Tooth Tip - Montana

This is a .55" long Tyrannosaur tooth from the Hell Creek Formation of Montana. Its enamel has been weathered away, but there are still some shiny areas remaining. The tooth also has a broken tip. It comes in an acrylic display case.

The tooth is likely from either Tyrannosaurus rex or 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.