Phanerozoic

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Related to Phenerozoic: Proterozoic, Phanerozoic eon, Paleozoic

Phanerozoic

[¦fan·ə·rō¦zō·ik]
(geology)
The part of geologic time for which there is abundant evidence of life, especially higher forms, in the corresponding rock, essentially post-Precambrian.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.