Titanothere, left lower jaw and teeth Protoceratops One hypothesis that it preyed

One hypothesis that it preyed on ammonites and that the teeth were specialized for the job of breaking into the ammonites' shells

25 inches wide

just off of center and at the very bottom of the specimen below

The head of Edaphosaurus was short

Titanothere, left lower jaw and teeth Protoceratops One hypothesis that it preyedThe Titanotheres (also known as brontotheres) are extinct family of large, rhinoceros like mammals that were ancestors of the horse, rhinoceros, and tapir. Titanotheres had horn like structures on their snout; bony knobs protruded from their skull and were covered with thick skin. Males had larger knobs than females. These herbivores ate soft forest vegetation and were up to 8 feet (2. 5 m) tall at the shoulder. Titanotheres had a tiny brain, only as