"This book features fascinating information on all the major types of dinosaur as well as ancient fish, other prehistoric reptiles in the air or water, and early mammals. Dinosaur reconstructions and the latest fossil finds bring back to life the bone-crunching teeth of the Tyrannosaurus rex, the astonishingly large body of the Argentinosaurus, and the plane-sized wings of the soaring Hatzegopteryx. Each page reveals new facts from the latest paleontological research, including each animal's size, group, habitat, time period, diet, and fossil discovery"-- Text and computer-generated illustrations present information about all the major types of dinosaurs as well as ancient fish, other prehistoric reptiles in the air or water, and early mammals. Includes fact-file sidebars and information about the latest fossil finds and breakthrough theories.