Content Background

Below we have listed good sources of background information, including a list of websites on related topics.

Web Sites

Geologic Time: This site has historical information about the geologic time scale, information about index fossils, descriptions of how the different time periods are named, and a discussion of the age of the Earth.

Geology and Geologic Time: This page presents a brief history of the Geologic Time Scale with links to a discussion about plate tectonics.

Geologic Time Machine: Explore the stratigraphy, ancient life, localities, and tectonics of different time periods, eras, and eons on the web.

Fossils, Rocks, and Time: This site covers topics of how the time scale was created, the relative time scale, fossil succession, and the absolute time scale.

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