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Proterozoic aeon   Listen
Proterozoic aeon

noun
1.
From 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms.  Synonyms: Proterozoic, Proterozoic eon.





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Words linked to "Proterozoic aeon" :   Precambrian, proterozoic, Precambrian eon, Precambrian period, eon, Precambrian aeon, Proterozoic eon, aeon


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