Archaeozoic



.
noting or pertaining to the earlier half of the Precambrian Era, from about 5 billion to 2.5 billion years ago, during which the earliest datable rocks were formed and from which the oldest known fossil forms, blue-green algae and bacteria, have been recovered.
the Archeozoic division of geologic time or the rock systems formed then.
Historical Examples

The remainder of Finland is built up of the oldest known crystalline rocks belonging to the Archaeozoic or Algonkian period.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 Various

adjective
a former word for Archaean
adjective
a variant spelling (esp US) of Archaeozoic
Archaeozoic
(är’kē-ə-zō’ĭk)
Another spelling of Archeozoic.
Archeozoic also Archaeozoic
(är’kē-ə-zō’ĭk)
See Archean.

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    marked by the characteristics of an earlier period; antiquated: an archaic manner; an archaic notion. (of a linguistic form) commonly used in an earlier time but rare in present-day usage except to suggest the older time, as in religious rituals or historical novels. Examples: thou; wast; methinks; forsooth. forming the earliest stage; prior to full […]



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