1.64" Hadrosaurid Caudal Vertebrae (Tail Bone)

This is a caudal vertebrae (tail bone) from a Hadrosaurid found in the Two Medicine Formation (Judith River Group) of Eastern Montana. The bone is 1.64" long and nicely preserved with very little surface weathering. There are still large portions of the shiny outer bone surface, and the base of the process is still attached, but portions have eroded away. There are a few crack repairs and the specimen has been stabilized to prevent further breakage.

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.