Packed with full color illustrations and diagrams and extremely informative entries.

Never again need you look like a fool when somebody asks you, 'What bumosaur is that?' This book features useful facts such as: Bumheaded Idiotasaurus - definitely the second-most stupid-looking bumosaur in prehistoric times; Poopigator - just like an alligator, except browner; and, smellier.

Along with the most important - and frequently sought after - information about the greatest bumosaur battles ever, and including a brief overview of the theory of bummolution and vital tips on how to keep a bumosaur as a pet.

Toilet humour meets dinosaurs in this perfect book for boys, from a No. 1 bestselling Australian children's author and illustrator.