This Specimen has been sold.
3.3" Edmontosaurus (Hadrosaur) Vertebrae - Montana
This is a 3.3" wide mid-caudal (center of tail) vertebrae of Edmontosaurus annectens a type of Hadrosaur. It was found in the Hell Creek Formation, at a quarry in Powder River County, Montana. It's in relatively good condition with just some wear around the edges of the centrum, with no restoration or repairs.
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.