Proterozoic Aeon — synonyms, definition

1. Proterozoic aeon (Noun)

2 synonyms
Proterozoic Proterozoic eon
1 definition

Proterozoic aeon (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