Chasmosaurus ("cleft lizard") is a ceratopsid dinosaur genus from the Upper Cretaceous time of North America. With a length of 5 - 6 meters and a weight of 3.6 tonnes, Chasmosaurus was a ceratopsian of standard size. Like all ceratopsians, it was merely herbivorous.

Chasmosaurus 1

Chasmosaurus 2

Chasmosaurus 3

Chasmosaurus 4