Synthetoceras tricornatus poster Mammut Spinosaurus was a massive sail-backed

Spinosaurus was a massive sail-backed predator that spent much of its life in the water

Celebrate the winter holidays with this poster featuring 10 Ice Age mammals: Woolly Mammoth

Dilong is a basal tyrannosaurid from the Lower Cretaceous Yixian Formation of China

By Andrey Atuchin

Paleontologists have found that lagerpetids are the ancestors of pterosaurs

Synthetoceras tricornatus poster Mammut Spinosaurus was a massive sail-backedThe males of this extinct ungulate were armed with a distinctive Y shaped horns that grew above its snout. Such a strange forked structure could have helped them intimidate each other to settle territorial disputes.