1.46" Nanotyrannus Tooth - Montana

This is a nice 1.46" long Tyrannosaurid tooth of the genus Nanotyrannus lancensis tooth 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 good shape with just a few spots where it is worn and there is minimal feeding wear to the tip. The serrations are pretty worn on both edges but the tooth does not have any restoration or repair done to it.

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.