Griffiths, Andy 1961- creator Denton, Terry illustrator text New York Scholastic 2007 First Scholastic printing, January 2008 monographic 157 pages : illustrations 19 cm "This book will tell you everything you need to know but were too grossed out to ask about prehistoric butt-related life forms and the complex stenchology of their environment"--Cover back. K 600 Lexile estimate K Raz-Plus Andy Griffiths ; illustrated by Terry Denton. Includes index. "The essential companion to the internationally butt-selling trilogy"--Cover back. Buttocks Juvenile fiction Buttocks Fiction Buttocks Fiction Prehistoric animals Fiction Mythical animals Fiction Humorous fiction PZ7.G88366 Wh 2007 828.9207 9780439926225 043992622X IMF 20231110114530.0 2196 eng