Definition of Proterozoic eon

1. Noun. From 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms.

Exact synonyms: Proterozoic, Proterozoic Aeon
Group relationships: Precambrian, Precambrian Aeon, Precambrian Eon, Precambrian Period
Generic synonyms: Aeon, Eon
Derivative terms: Proterozoic

Lexicographical Neighbors of Proterozoic Eon

Protagorean
Protea cynaroides
Protea mellifera
Proteaceae
Proteales
Protean
Proteas
Protector of Boundaries
Protectorate of Bohemia and Moravia
Proteidae
Proteles
Proteles cristata
Proterochampsa
Proterozoic
Proterozoic aeon
Proterozoic eon
Protestancy
Protestant
Protestant Church
Protestant Episcopal Church
Protestant Movement
Protestant Reformation
Protestant Reich Church
Protestant deacon
Protestant denomination
Protestant ethic
Protestant work ethic
Protestantism
Protestantly
Protestants

Literary usage of Proterozoic eon

Below you will find example usage of this term as found in modern and/or classical literature:

1. Traveling America's Loneliest Road: A Geologic and Natural History Tour by Joseph V. Tingley, Kris Ann Pizarro (2000)
"Azoic, was, until recently, thought to be without life; the proterozoic eon was the time of "early life"; the Phanerozoic Eon, which extends to the present, ..."

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