Edmontosaurus was a large, plant-eating, duck-billed dinosaur from the Late Cretaceous period.
Like most other hadrosaurs, it had a toothless beak, with teeth further back in the cheeks. The skull shows signs that Edmontosaurus may have had large inflatable flaps of skin near its nose to attract a mate, or to make a loud honking noise.
- Pronounced: ed-mon-toe-sore-uss
- Means: Lizard of Edmonton (Canada)
- Where: North America (Alberta, Alaska, Wyoming, Montana, New Jersey)
- When: Late Cretaceous
- Diet: Herbivorous
- Size of Nest: L 8 ft (2.44 m), H 3 ft 2 in (0.97 m)*
* includes height of steel base