May. 23rd, 2014

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The Chasmosaurs, including Chasmosaurus belli, are a large group of gigantic ceratopsian dinosaurs from Cretaceous North America (with only one known exception from China). While some ceratopsians have large, elaborate horns, Chasmosaurus only had a few small ones above the nose and eyes and around the edges of its frill, while the frill on Chasmosaurus was one of the largest known for all ceratpsian dinosaurs. This suggests that rather for defense against predators, the frill was used for display, and may have been boldly patterned and colored for attracting mates.

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Lauren Helton

September 2014

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