Paleoarchean

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Paleoarchean eon 3600 - 3200 million years ago

The geological eras view • discuss • edit -4500 — – -4000 — – -3500 — – -3000 — – -2500 — – -2000 — – -1500 — – -1000 — – -500 — – 0 — Hadean Archean Protero -zoic Phanero -zoic Eo Paleo Meso Neo Paleo Meso Neo Paleo Meso Ceno     Scale: Millions of years

The Paleoarchean (pronounced /ˌpeɪlɪ.oʊ.ɑrˈkiːən/, 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
Eoarchean	Paleoarchean	Mesoarchean	Neoarchean