History of The Earth - Phanerozoic Eon

Phanerozoic Eon

Main article: Phanerozoic

The Phanerozoic is the major eon of life on Earth. It consists of three eras: The Paleozoic, Mesozoic, and Cenozoic, and is the time when multi-cellular life greatly diversified into almost all of the organisms known today.

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