English Explanatory Dictionary

Paleoproterozoic

English dictionary entry

Meanings

name
  1. The era from 2,500 Ma to 1,600 Ma, marked by a dramatic increase in atmospheric oxygen.
adj
  1. Of a geologic era within the Proterozoic eon from 2,500 to 1,600 million years ago.

Word forms

Paleoproterozoic

Etymology

From paleo- + Proterozoic.

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