Serrated 1.71" Nanotyrannus Tooth - Montana

This is a serrated, 1.71" long Tyrannosaur tooth likely of the species Nanotyrannus lancensis from the Hell Creek Formation of Montana. There is some root etching to the enamel of the tooth but most of the serrations are visible and there is little wear to the tip. There is one repair to the tooth, about 1/3 of the way from the tip.

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.