Mean atmospheric O2
Geologic Time Scale
Albertaceratops & White Rhinoceros compared
An adult centrosaurine horned dinosaur of the genus Albertaceratops from 77 million years ago is compared to a modern adult White Rhinoceros (Ceratotherium simum). The Albertaceratops is 6 and a half feet tall at the shoulder and weighs 4,500 pounds*, while the White Rhinoceros is 6 feet tall at the shoulder and weighs 7,000 pounds.
* Values are estimates only based upon available paleontological data.
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