geology, stratigraphic

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.

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.

An introduction to geology that uses full-color photographs and easy-to-read text to describe how rocks are formed, the main components of rocks, rock layers, and the rock cycle; and includes instructions for a related activity.