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Phanerozoic

adjective

  1. geological eon spanning from 538.8 million years ago to the present time
L1322102 on Wikidata ↗

Wiktionary

adj

Etymology: From Ancient Greek φανερός (phanerós, “visible”) + ζωή (zōḗ, “life”) + -ic.

  1. Of or relating to the Phanerozoic eon.

name

Etymology: From Ancient Greek φανερός (phanerós, “visible”) + ζωή (zōḗ, “life”) + -ic.

  1. A geologic eon from about 538.8 million years ago to the present.