A nice specimen coming from the Late Cretaceous Period in what is now known as the Hell Creek Formation about 70 million to 66 million years ago. It a very nicely preserved right jaw of a juvenile Hadrosaurus, probably an Edmontosaurus.

Edmontosaurus sp.

Late Cretaceous(70 - 66 mil.y)

Hell Creek Formation, Jordan, Montana

240 mm - 9.45"

Very good