HyperDic: proterozoic_aeon

English > 1 sense of the expression Proterozoic aeon:
NOUNtimeProterozoic aeon, Proterozoic, Proterozoic eonfrom 2,500 to 544 million years ago
English > Proterozoic aeon: 1 sense > noun 1, time
MeaningFrom 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms.
SynonymsProterozoic, Proterozoic eon
Instance ofeon, aeonThe longest division of geological time
Part ofPrecambrian, Precambrian eon, Precambrian aeon, Precambrian periodThe eon following the Hadean time and preceding the Phanerozoic eon
Spanishproterozoico, Proterozoico
CatalanProterozoic

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