The Genus Corythosaurus is a type of hadrosaur dinosaur that roamed the Earth over 70 million years ago. The word 'Corythosaurus' is derived from the Greek words 'korytho', which means helmet, and 'sauros', which means lizard. This dinosaur had a characteristic crest on its head that resembled a helmet, hence the name. Other synonyms for the Genus Corythosaurus include Corythosaur, Crested Dinosaur, and Helmeted Lizard. This dinosaur was a herbivore and had unique adaptations, such as its dental batteries, that allowed it to efficiently grind tough plant material. Today, fossils of this dinosaur can be found in North America and China.