Paleozoic Hear it!

Paleozoic Definition

Paleo·zoic (pā′lē ə zō′ik)

adjective

designating or of the first geologic era of the Phanerozoic Eon, characterized by the development of the first fishes, amphibians, reptiles, and land plants

Etymology: paleo- + zo- + -ic

Paleozoic Idioms

the Paleozoic

the Paleozoic Era or its rocks

Paleozoic Usage Examples

Modifies a noun

  • era: Permian period of geological time from 280 to 255 million years ago, marks the end of the Paleozoic Era.
  • fauna: The Paleozoic fauna took a nose dive from about 300 families to about 50.
  • sediment: The southernmost mountain system of the Anti-Atlas thus consists of crystalline basement and Paleozoic sediments.
  • rock: The dominant geological structure of the Lake District is a dome of Paleozoic rocks formed by uplift in the Tertiary.
  • period: The Amazon Basin was formed in the Paleozoic period, somewhere between 500 and 200 million years ago.