BabelNet

bn:00005395n

Noun Named Entity

Categories: Articles with short description, Archean, Precambrian geochronology

Archean Archean eon Archean aeon Archeozoic Archaeozoic

The time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life WordNet 3.0

Definitions

Relations

Sources

The time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life WordNet 3.0 & Open English WordNet

The Archean Eon, in older sources sometimes called the Archaeozoic, is the second of the four geologic eons of Earth's history, preceded by the Hadean eon and followed by the Proterozoic. Wikipedia

Second eon of the geologic timescale Wikidata

The eon from 2,500 Ma to 4,000 Ma. Wiktionary

Archaean eon. Wiktionary (translation)

Period of time determined to exist prior to 2.5 thousand million years ago. Wiktionary

IS A

HAS PART

PART OF

DERIVATION

DESCRIBED BY SOURCE

Brockhaus and Efron Encyclopedic Dictionary

Armenian Soviet Encyclopedia

Encyclopædia Britannica 11th edition

FOLLOWED BY

Proterozoic

FOLLOWS

Hadean

WordNet 3.0 & Open English WordNet

Archean, Archean eon, Archean aeon, Archeozoic, Archaeozoic, Archeozoic eon, Archaeozoic aeon

Wikipedia

Archean

Wikidata

Archaean

Wiktionary

Archaean, Archaeozoic

Wikipedia Redirections

Archaean., Archaean Eon, Archaean rock, Archaen, Archaeozoic, Archean Eon, Archean era, Archean System, Archeon eon, Archeozoic, Archeozoic era

Wikidata Alias

Archean