Paleoarchean
From Wikipedia, the free encyclopedia
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Paleoarchean era
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| Geologic timescale of the Precambrian |
| (millions of years ago) |
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The Paleoarchean (pronounced /ˌpeɪlɪoʊɑrˈkiːən/, also spelled Palaeoarchaean) is a geologic era within the Archaean. It spans the period of time 3600 Ma to 3200 Ma (million years ago)—the period being defined chronometrically and not referenced to a specific level in a rock section on Earth. The oldest ascertained life form (Well-preserved bacteria older than 3.46 billion years found in Western Australia) is from this era.
| Archean eon | |||
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| Eoarchean | Paleoarchean | Mesoarchean | Neoarchean |
