"Posy is a selfish dinosaur who won't let any other dinosaur cross a bridge. However, once another dinosaur moves into the desert and claims the bridge as his own, Posy must learn to share"--OCLC.
Follows the migration of the plateosaurus across the sea, through desert, and over mountains to their nesting places, while they try to avoid predators and other dangers.
Photographs, illustrations, and simple text describe the Plateosaurus from the Mesozoic era, when and where it lived, what it ate, and how it raised its young.
