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What does Paleoarchean mean?

Looking for the meaning or definition of the word Paleoarchean? Here's what it means.

  1. (geology) Of a geologic era within the Archaean eon from about 3600 to 3200 million years ago; the first aerobic bacteria appeared at this time.
Proper noun
  1. (geology) The era from 3,600 Ma to 3,200 Ma.
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