- ISBN: 9780778718109 | 0778718107
- Cover: Paperback
- Copyright: 1/31/2011
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.