Unworn Hadrosaur Tooth (Duck-Billed Dinosaur)

Here is an nicely preserved, tooth from Edmontosaurus annectens, a Hadrosaur. It's .83 inches long, is relatively unworn with dark enamel preservation.

It comes from the Cretaceous aged (66 million years) Hell Creek Formation in Powder River County, Montana. This is the same formation that produces fossils of such well known dinosaurs as T-Rex and Triceratops.

Hadrosaurs

are frequently referred to as duck-billed dinosaurs and are members of the Ornithischian family Hadrosauridae. They were fairly common herbivores that 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.

More about Hadrosaurs