"Ankylosaurus, originally published as Ankylosaurus fights back by Laura Gates Galvin, illustrated by Adrian Chesterman ... c2007"--T.p. verso.
Includes bibliographical references (p. 32) and index.
This book tells the story of Ankylosaurus. This armored beast looked like a walking tank. It lived during the Cretaceous period between 100 and 65 million years ago and fed on plant material. At the end of its tail grew a bony club that it used to protect itself.