Packed with illustrations and diagrams and extremely informative entries. Never again need you look like a fool when somebody asks you, `What bumosaur is that?'

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.