| / English Dictionary |
PROTEROZOIC AEON
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
From 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms
Synonyms:
Proterozoic; Proterozoic aeon; Proterozoic eon
Classified under:
Nouns denoting time and temporal relations
Instance hypernyms:
aeon; eon (the longest division of geological time)
Holonyms ("Proterozoic aeon" is a part of...):
Precambrian; 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)
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