Allosaurs hunted with sharp teeth, and Steogosaurs developed bones like armor to stay safe from fierce predators. It's no wonder dinos ruled Earth back in the Jurassic period. But what about creatures flying high in the sky or the predators lurking under the waves? Many of those animals were not dinos.

Includes index.

The time of dinosaurs -- The Jurassic period -- Dinosaurs of the Jurassic -- Not a dino -- How do we know? -- Pliosaurus -- Liopleurodon -- Dimorphodon -- End of the Jurassic.