Serrated, 1.42" Tyrannosaur (Nanotyrannus) Tooth - South Dakota

This is a serrated, 1.42" long Tyrannosaur tooth likely of the species Nanotyrannus lancensis from the Hell Creek Formation of South Dakota. This tooth is in good condition with nice serration preservation in spots. There are two repaired cracks through this tooth, one proximal to the root and one near the middle of the tooth. The serrations at the points of breakage are chipped away.

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.
DETAILS
SPECIES
Nanotyrannus lancensis
LOCATION
Harding County, South Dakota
FORMATION
Hell Creek Formation
SIZE
1.42" long (straightline)
CATEGORY
SUB CATEGORY
ITEM
#113307
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