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Definition 2024


Proterozoic

Proterozoic

English

Proper noun

Proterozoic

  1. (geology) The eon from 2,500 Ma to 541.0±1.0 Ma, the beginning of the Phanerozoic, marked by the build up of oxygen in the atmosphere and the emergence of primitive multicellular life.

Hypernyms

Hypernyms

Coordinate terms

Translations

Adjective

Proterozoic (not comparable)

  1. (geology) Of or relating to the geologic eon from 2,500 Ma to 541.0±1.0 Ma.

Translations

See also

  • Appendix:Geologic timescale