| Chasmosaurus Temporal range:late Cretaceous | |
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| Genus: | Chasmosaurus Lambe, 1914 |
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C. belli | |
Chasmosaurus was arhinoceros-likedinosaur, the order ofbird-hipped,herbivorous dinosaurs. It was a member of the suborderMarginocephalia, and the family of large, horned,herding herbivores, theceratopsians.Chasmosaurus was named bypaleontologistLawrence Lambe in1914.
Chasmosaurus lived 65 to 100 million years ago and was 5 to 6 metres long with a weight of 3.6 tonnes.
They lived in westernNorth America from Alaska to Mexico.
