Mean atmospheric O2
Geologic Time Scale
A one ton, 20-foot-long centrosaurine ceratopsian dinosaur of the genus Diabloceratops wanders a Cretaceous forest 70 million years ago in what is today Utah. Diabloceratops had a pair of relatively small horns above its eyes and very long horns on the frill.
Like the better known Triceratops, Diabloceratops was a Ceratopsid, a family of large four-legged plant-eating dinosaurs characterized by beaks, rows of shearing teeth in the back of the jaw, and elaborate horns and frills. While they resemble defensive shields, the frills are in fact relatively fragile, suggesting that they may have served a purpose other than protecting against a brute force attack. One possibility is that the frills were employed as visual displays in order to intimidate rivals and attract the opposite sex.
Copyright © Walter B. Myers. All rights reserved.
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