Praise for the first edition:

"A gift to serious dinosaur enthusiasts" --Science

"The amount of information in these] pages is amazing. This book should be on the shelves of dinosaur freaks as well as those who need to know more about the paleobiology of extinct animals. It will be an invaluable library reference." --American Reference Books Annual

"An excellent encyclopedia that serves as a nice bridge between popular and scholarly dinosaur literature." --Library Journal (starred review)

"Copiously illustrated and scrupulously up-to-date... the book reveals...