Prehistoric North America

The story of prehistoric mammals, where they came from, what the different kinds were like, and theories about their disappearance.

Describes the changes that shaped North America in the late Paleozoic era, discussing Pangea and the moving of the earth's plates, the evolution of plants and animals on land, the production of the fossil fuels coal and oil, and the Permian Extinction. Also includes a geologic time scale, glossary, and list of museums and further resources.

A short study of plant and animal life on Earth during the Paleozoic period.

Describes the formation of the earth during the Precambrian period including the structure of the planet, Pangea, the rock cycle, and the origins of living things.

Presents an introduction to the Ice Age in North America, in simple text with illustrations, describing the geography,environment, and plant and animal life of the time.

Presents an introduction to prehistoric North America, providing information on the Cenozoic Era, describing the land forms, environmental conditions, and creatures who roamed this territory over twenty million years ago.

Examines the various dinosaurs of the Mesozoic period, the evolution of the land forms, and the events that brought them to an end.