Mesosaurus, Permian Freshwater Reptile Protoceratops The left fibula is preserved

The left fibula is preserved on the main slab

and possibly carrion

These animals had large

They were the dominant predator of the Cretaceous Age which ended about 65 million years ago

328 pounds) in weight

Mesosaurus, Permian Freshwater Reptile Protoceratops The left fibula is preservedBeautiful plaque preserving a unique water dwelling early reptile form. Known from only South America and Africa, this distribution of Mesosaurus supports the understanding that these great continents were once joined together; Mesosaurus could easily swim rivers from one continent to another but salty oceans would have thwarted the freshwater creature from crossing an existing ocean. Mesosaurus sp. Early Permian (280 m. y. a.) Irati Formation Sao