Chasmosaurus is the oldest long-frilled dinosaur to be found. The frill is long with large fontanelles. It may have been used to protect itself; however, it is more likely that it was used for display to attract a mate. Chasmosaurus also had two medium sized horns above the eye sockets, and a small horn above the snout in some species. This plant-eater grew to be seventeen feet long and weighed four tons. Chasmosaurus lived during the end of the Cretaceous time period and was found in Alberta, Canada and New Mexico, United States.
Click here to go to a picture of a Chasmosaurus that you can print out and color yourself.
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