Archean eon

The first eon in Earth’s history (4.6–2.5 billion years ago).

Thesaurus

Noun

Archean eon - the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of lifeArchaeozoic, Archaeozoic aeon, Archean, Archean aeon, Archeozoic, Archeozoic eonPrecambrian, Precambrian aeon, Precambrian eon, Precambrian period - the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago

Archean eon

Archean eon:

see PrecambrianPrecambrian,
name of a major division of geologic time (see Geologic Timescale, table), from c.5 billion to 570 million years ago. It is now usually divided into the Archean and Proterozoic eons. Precambrian time includes 80% of the earth's history.
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Archean eon

Related to Archean eon: Proterozoic eon, Phanerozoic eon

noun

Synonyms for Archean eon

noun the time from 3,800 million years to 2,500 million years ago

Synonyms

Archaeozoic
Archaeozoic aeon
Archean
Archean aeon
Archeozoic
Archeozoic eon

Related Words

Precambrian
Precambrian aeon
Precambrian eon
Precambrian period