Paleoarchean

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Archean eon
3,800-2,500
Eoarchean
3,800-3,600
Paleoarchean
3,600-3,200
Mesoarchean
3,200-2,800
Neoarchean
2,800-2,500

The Paleoarchean is a geologic era that spans from 3600-3200 bya. The two domains eubacteria and archaea evolved during this era.

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