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.

Dino Facts

  • Pronounced: ed-mon-toe-sore-uss
  • Means: Lizard of Edmonton (Canada)
  • Size: 39 ft (12 m)
  • Where: North America (Alberta, Alaska, Wyoming, Montana, New Jersey)
  • When: Late Cretaceous
  • Diet: Herbivorous