Very nice quality femur bone from a hadrosaur from the Judith River formation in Montana. The Corythosaurus is one of the most spectacular Hadrosaurs and is best known by its helmet shaped crest. The bone is 520 mm (20.5") long.
Late cretaceous (77 - 74 mil.-y)
Judith River formation, Montana, USA
580 mm - 22.8" height on stand