Paleoarchean.
Of a geologic era within the Archaean eon from about 3600 to 3200 million years ago; the first aerobic bacteria appeared at this time.
Meaning & usage
Of a geologic era within the Archaean eon from about 3600 to 3200 million years ago; the first aerobic bacteria appeared at this time.
Where this word comes from
Etymology tree Ancient Greek πᾰλαιός (pălaiós)der. English paleo- English Archaean English Paleoarchean From paleo- + Archaean.
The era from 3,600 Ma to 3,200 Ma.
Where this word comes from
Etymology tree Ancient Greek πᾰλαιός (pălaiós)der. English paleo- English Archaean English Paleoarchean From paleo- + Archaean.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.