Precambrian period
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Precambrian period Definition
(n)
the
eon
following
the
Hadean
time
and
preceding
the
Phanerozoic
eon
;
from
about
3
,
800
million
years
ago
until
544
million
years
ago
Precambrian period Synonyms
Precambrian
Precambrian aeon
Precambrian eon
Precambrian period
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