Dinosaurs have long been a source of speculation. This beautifully illustrated guide includes: - Fascinating facts about these animals that ruled the earth for more than 100 million years - Key features that make each individual genus distinctive - The latest information about how dinosaurs evolved and why they became extinct Dinosaursis an indispensable reference for everyone intrigued by these mighty creatures. Golden Guides first appeared in 1949 and quickly established themselves as authorities on subjects from Natural History to Science. Relaunched in 2000,Golden Guides from St. Martin's Pressfeature modern, new covers as part of a multi-year, million-dollar program to revise, update, and expand the complete line of guides for a new generation of students. Dinosaurs have long been a source of speculation. This beautifully illustrated guide includes: Fascinating facts about these animals that ruled the earth for more than 100 million years Key features that make each individual genus distinctive The latest information about how dinosaurs evolved and why they became extinct Dinosaursis an indispensable reference for everyone intrigued by these mighty creatures. Using clear text and detailed illustrations, Golden Guides from St. Martin's Press present accurate information in a handy format for the beginner to the expert. These guides focus on what your students are really going to see. They are easy to use: detailed, full-color illustrations, text, and maps are all in one place. They are easy to understand: accurate, accessible information is simplified without being misrepresented. They are authoritative, containing up-to-date information written experts and checked by specialists. And they are portable: handy and lightweight, designed to fit in a pocket and be carried anywhere. Golden Guides from St. Martin's Press have been updated and revised to revitalize the complete line of guides for a new generation of students.