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TIMELINE |
Archean Eon |
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| Period | Subdivision | Timespan |
| Archean Eon | Eoarchean | 4000 to 3600 million years ago |
| Paleoarchean | 3600 to 3200 million years ago | |
| Mesoarchean | 3200 to 2800 million years ago | |
| Neoarchean | 2,800 to 2,500 million years ago |