It’s fight time for Megalodon and Mosasaurus! Which prehistoric powerhouse will win this epic animal battle? This 24-page children’s book is specifically de

This title takes you millions of years back in time to meet Mosasaurus, a giant, marine reptile. Complete with computer generated images, fossil finds, and a fo

Describes Megalodon, an extinct shark that was more than fifty feet long and could swallow an object the size of a small car.

Over 500 photos and engaging text reveal the fossils of the Cretaceous Period, the last period of the Mesozoic Era, the "Age of Reptiles," dating from 120 to 67

A classic work from the Yale Peabody Museum of Natural History describing the mosasaurs, a group of large predatory marine lizards of the Mesozoic ​Mosasaurs