The eon of the earliest solid crust and the earliest life, in an atmosphere with almost no free oxygen. The oceans and continents as standing features begin here. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Start (Million Years Ago) End (Million Years Ago) Key EventThe oldest confirmed continental crust and the first widely accepted evidence of life, single-celled and anaerobic. 1 Connections
Anticipated By
Has Geologic Rank
In Discipline
Source Geologic Time Scale (Wikipedia)
Precursor To
Sources
1. Geologic Time Scale (Wikipedia)
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