This book has been graded for interest at 5-9 years.

There are 303 pages in this book. This is a reference book. This book was published 2010 by DK Publishing (Dorling Kindersley) .

Dr. Darren Naish is a writer and palaeozoologist with specialist knowledge of Cretaceous era dinosaurs and pterosaurs. Based in Southampton, UK, Darren has written many children's books. Jim Pipe is an author, who has written numerous nonfiction books for children. The author, Ian Graham, is a full-time writer of books and magazines, specialising in technology.