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Eras

Paleoarchean

Archean

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The second era of the Archean eon, spanning about 3.6 to 3.2 billion years ago. The earliest identifiable fossils in the geologic record, stromatolites preserved in roughly 3.48 billion year old sandstone, date to within this era, among the oldest direct evidence of life on Earth.

Facts
Rank
Era 1
Start (Million Years Ago)
3600 1
End (Million Years Ago)
3200 1
Key Event
The earliest identifiable fossils consist of stromatolites found in 3.48 billion-year-old sandstone. 1
Cross-Tradition Connections

Anticipated By

Eoarchean, Eras

In Discipline

Geochronology, Disciplines

Part Of

Archean, Eras

Precursor To

Mesoarchean, Eras
Sources
1. Archean (Wikipedia)
Wikimedia FoundationInfobox chronology table
Quote, Infobox chronology table
3,600-3,200 Ma
View the Source
1. Archean (Wikipedia)
Wikimedia FoundationEarly life section
Quote, Early life section
The earliest identifiable fossils consist of stromatolites found in 3.48 billion-year-old sandstone.
View the Source
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