【Origin】 Harding County, South Dakota, USA 【Formation】 Hell Creek Formation 【Age】 Late Cretaceous 【Size】 Approx. 4 mm This is a very rare fossil tooth of Troodon, considered one of the smartest dinosaur species. Troodon means "wounding tooth," and the name comes from its sharp, serrated teeth. It is a beautiful fossil in very good condition. I have other fossils for sale, so please consider them as well. *Case not included. #Luna'sFossils Dinosaur Fossils