This dinosaur was one of the giants in the large family of duckbill dinosaurs. It was as long as 43 feet and could weigh more than 3 tons. It belonged to the group of "bird-foot" families and appeared during the late Cretaceous period, about 72 million years ago. Edmontosaurus were plentiful: they were known to have lived all over the earth.

Edmontosaurus did not have a bony crest on top of its head, as other duckbills did. Its skull was low in front and high at the back. It fed on plants that needed to be chopped up before being swallowed. To do that it had about a thousand teeth in its soft mouth. Scientists know quite a bit about this dinosaur because they have found so many skeletons.

Some scientists think Edmontosaurus had flaps of skin on each side of its nose. When it blew these up like balloons, they made a loud bellowing sound. Like many other animals, dinosaurs probably used these loud noise to communicate.

Location: Canada, USA

Diet: Foliage, fruits

Size: Length 13m

      Weight 4 tonnes

Classification:

Family Hadrosauridae

Suborder Ornithopoda

Order Ornithischia

Time (million years ago): 67-65