This Specimen has been sold.
11.8" Edmontosaurus (Duck-Billed Dinosaur) Ulna Bone - Montana
This is an 11.8" long ulna bone of Edmontosaurus annectens, a species of Hadrosaur more commonly referred to as a "duck-billed dinosaur". The bone was collected from the Hell Creek Formation in Carter County, Montana. There are about five repaired cracks through this ulna bone, however there is little to no restoration. The only restoration is gap fill within cracks where the bone crumbled following breakage.
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.