Proterozoic Eon — synonyms, definition

1. Proterozoic eon (Noun)

2 synonyms
Proterozoic Proterozoic aeon
1 definition

Proterozoic eon (Noun) — From 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms.

2 types of
aeon eon
4 parts of
Precambrian Precambrian aeon Precambrian eon Precambrian period
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