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 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.