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Definition 2024


Paleoproterozoic

Paleoproterozoic

English

Proper noun

Paleoproterozoic

  1. (geology) The era from 2,500 Ma to 1,600 Ma, marked by a dramatic increase in atmospheric oxygen.

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Adjective

Paleoproterozoic (not comparable)

  1. (geology) Of a geologic era within the Proterozoic eon from 2,500 to 1,600 million years ago.

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See also

  • Appendix:Geologic timescale