Serrated .96 Inch Nanotyrannus / T-Rex Tooth

Here is a nice .96 tooth of Nanotyrannus from the Lance Creek Formation of Wyoming. It exhibit clear serrations along the edge, of the tooth and a nice sharp tip. Nanotyrannus ("tiny tyrant") is a genus of tyrannosaurid dinosaur. There is a ongoing debate between dinosaur paleontologists whether it represents a juvenile Tyrannosaurus or is it's own species. See Jack Horner's TED talk below.

Either way it is killer tooth from one of the most fearsome predators to the Cretaceous period.