PRECAMBRIAN EON

Pronunciation (US): (GB):

Meaning:

The eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago

Synonyms:

Classified under:

Nouns denoting time and temporal relations

Instance hypernyms:

aeon; eon (the longest division of geological time)

Meronyms (parts of "Precambrian eon"):

Proterozoic; Proterozoic aeon; Proterozoic eon (from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms)

Archaeozoic; Archaeozoic aeon; Archean; Archean aeon; Archean eon; Archeozoic; Archeozoic eon (the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life)