The Parasaurolophus was a herbivorous dinosaur that lived during the Late Cretaceous period. It was a member of the Hadrosauridae family and had a distinctive crest on its head. This crest was likely used for communication and species recognition.

The Parasaurolophus was a bipedal animal, meaning it walked on two legs, and could reach up to 30 feet in length. It had a long tail that helped it balance as it walked. The Parasaurolophus is known from fossils found in western North America, particularly in Alberta and New Mexico.