1.59" Nanotyrannus Tooth - Montana

This is a 1.59" long Tyrannosaurtooth of the genus Nanotyrannus lancensis from the Hell Creek Formation of Montana. This is pretty good sized for a nano tooth, as they average about an inch in length. The enamel is pretty worn and there is a lot of feeding wear to the tip. Most of the inner serrations are present, except where they have been worn near 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.