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Phanerozoic vs Proterozoic - What's the difference?

phanerozoic | proterozoic |

In geology terms the difference between phanerozoic and proterozoic

is that phanerozoic is a geologic eon from about 570 million years ago to the present, comprising the Paleozoic, Mesozoic and Cenozoic eras while proterozoic is of, or relating to the geologic eon from 2,500 Ma to 541.0±1.0 Ma.

phanerozoic

English

(wikipedia Phanerozoic)

Adjective

(en adjective)
  • (geology) Of, or relating to the Phanerozoic eon

    • Proper noun

    (en proper noun)
  • (geology) A geologic eon from about 570 million years ago to the present, comprising the Paleozoic, Mesozoic and Cenozoic eras.

    • See also

    *

    proterozoic

    English

    (wikipedia Proterozoic)

    Proper noun

    (en proper noun)
  • (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

    * Precambrian - eon/supereon

    Hypernyms

    * Paleoproterozoic, Mesoproterozoic, Neoproterozoic

    Coordinate terms

    * Archaean - preceding eon, Cambrian - succeeding eon

    Adjective

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

    • See also

    *