This Specimen has been sold.
Edmontosaurus Finger Bone - Hell Creek Formation
This is a finger bone of a Edmontosaurus annectens, a Hadrosaur or commonly referred to as a duck-billed dinosaur. It was collected from the 66 million year old Hell Creek Formation of South Dakota. It's pretty heavily eroded from surface exposure.
Hadrosaursare frequently referred to as duck-billed dinosaurs and are members of the ornithischian family Hadrosauridae They were fairly common herbivores which roamed Asia, Europe and North America during the Upper Cretaceous Period. Many species of hardrosaurs had distinct crests on their head, some of which had air filed chambers that may have produced a distinct sound. These crests may have been used for both audio and visual display purposes.