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Meaning of Paleozoic

Pa•le•o•zo•ic

Pronunciation: (pā"lē-u-zō'ik or, esp. Brit., pal"ē-), [key]
— Geol. Geol.
—adj.
  1. noting or pertaining to an era occurring between 570 million and 230 million years ago, characterized by the advent of fish, insects, and reptiles. See table under
—n.
  1. the Paleozoic Era or group of systems.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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