2.4" Hadrosaur (Duck-Billed Dinosaur) Finger Bone

This is a nicely preserved finger bone from a Hadrosaur found in the Two Medicine Formation (Judith River Group) of Eastern Montana. The bone is 2.5" long and has almost no erosion.

Within the Judith River Group there are 3 major hadrosaurids, Brachylophosaurus, Kritosaurus, and Lambeosaurus with Brachylophosaurus being the most commonly found. With just a single bone it is hard to differentiate between the different genera and give a definitive identification.