GEOL 1122 Historical Geology: Geologic Time

A geologic time scale focusing on the Americas available from the U.S. National Parks Service

A geologic time scale developed by the International Union of Geological Sciences, originally published in Episodes, which is provided by the International Commission on Stratigraphy.

A resource about geological time developed by the British Geological Survey that includes an interactive geological timeline.

A list of mnemonic (memory) devices that can be used to memorize the periods of the Geologic Time Scale

A collection of geology related mnemonic devices from a site in the European Union. Includes geologic time as well as devices for remembering other geologic facts (Mohs hardness scale, grain size and the order of crystallization of minerals from a magma).

Allows users to tour Big History, the history of the Earth from the Big Bang to the present, including the history of the Big Bang, cosmos, Earth & life, human pre-history and human history.