Introduces readers to five different dinosaurs and describes how they looked, what they ate, and how they lived. Also features five swimming or flying reptiles (relatives) that lived at the time of the dinosaurs, a simple diagram with each chapter that shows the size of the dinosaur or relative compared to the size of a human, a pronunciation of the dinosaur or relative's name, and an explanation of the meaning of these names.

Includes glossary and index.

Dinosaurs -- Hard heads -- Pachycephalosaurus -- Psittacosaurus -- Triceratops -- Styracosaurus -- Pachyrhinosaurus -- Names and their meanings.