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Chaotian

Classification:Eon (as per International Commission on Stratigraphy)
Status:This is a proposed eon and is not yet approved by the ICS or the IUGS.
Top:~4600 Ma
Base:~5000 Ma
Preceeds:Precambrian
Primary Divisions:NeochaotianEochaotian
Name origin:Name derived from mythological chaos.
An unofficially proposed to denote the time preceding the formation of Earth and the moon.

The end of the Chaotian was marked by the hypothetical collision of the as-yet unnamed proto-Earth and a planet-sized body named Theia, leading to the formation of the Earth and the Moon.
 


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