This skull is cast from a well preserved fossil, of a young adult Edmontosaurus.  The fossil, field named “Survey”, was more than 75% complete and was found almost completely articulated.  The skull for this fossil was almost 100% complete and included all four teeth batteries.

An interesting fact about the Edmontosaurus is that there are an estimated 10,000 Edmontosaurs buried in Harding County, SD alone!  Another interesting fact is that Hadrosaurs, the group of dinosaurs to which the Edmontosaurus belongs, have more teeth then any other animal known, more than 1,200.