Covers the physical characteristics and possible behaviors of dinosaurs, categorized by when they lived, and also provides information on the prehistoric animals that lived with the dinosaurs, how fossils are formed and excavated, and why they may have beome extinct.-- Source other than Library of Congress.

Includes index. "A references guide to the prehistoric world"--Cover.

Age of the dinosaurs -- Let's look at dinosaurs -- Triassic dinosaurs -- Jurassic dinosaurs -- Cretaceous dinosaurs -- Other forms of life -- Fossils -- End of the dinosaurs -- Reference section.