Meaning of Proterozoic
Definition of Proterozoic
(adj)
formed
in the
later
of two divisions of the Precambrian era; "proterozoic
life
forms"
(noun)
from 2,500 to 544
million
years
ago;
bacteria
and fungi;
primitive
multicellular
organisms
Other information on Proterozoic
WIKIPEDIA results for
Proterozoic
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Proterozoic
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