Edmontosaurus

Edmontosaurus was a duck-billed dinosaur that roamed western North America during the late Cretaceous period. It lived alongside famous dinosaurs like Triceratops and T. rex just before the asteroid impact wiped them out. This plant-eater left fossils in rocks dating between 73 and 66 million years old.

• Had two known species: Edmontosaurus regalis and Edmontosaurus annectens
• One of the last dinosaurs before the mass extinction event
• Fossils found in both Canada and the United States