This Specimen has been sold.
3.5" Hadrosaur (Duck-Billed Dinosaur) Vertebrae - Montana
This is a 3.5" long vertebrae of the Hadrosaur, Edmontosaurus annectens from the Hell Creek Formation of Montana. It's nice and solid and heavy.
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 Hadrosaurs had distinctive crests on their heads, some of which had air-filled chambers that may have produced a distinct sound. These crests may have been used for both audio and visual display purposes.