Introduces the class of dinosaurs known as horned herbivores, describing the time period in which they lived, their various types, and the physical characterist

Introduces the class of dinosaurs known as horned herbivores, describing the time period in which they lived, their various types, and the physical characterist

The vice president of the Dinosaur Society and an accomplished science illustrator combine talents to create an unusual ABC book that brings the world of dinosa

Easily distinguished by the horns and frills on their skulls, ceratopsians were one of the most successful of all dinosaurs. This volume presents a broad range

#1 NEW YORK TIMES BESTSELLER • From the author of Timeline, Sphere, and Congo, this is the classic thriller of science run amok that took the world by storm.