This book is an illustrated guide to the awesome animals that ruled our planet millions of years ago. Discover more than 250 ancient species, many of which have only just been unearthed.

Accompanied by spectacular double-page illustrations, the encyclopedia is packed full of extra information on the anatomy, behaviour, diet and habitat of prehistoric creatures. 

Find out about the very first dinosaurs and their ancestors, the giant herbivores, the fierce meat-eaters and the reptiles that ruled the seas and skies. And read about the amazing quest of the fossil hunters who have gradually revealed a hidden world.