Paleozoic era

Paleozoic era

The first part of the Phanerozoic eon, 509 to 248 million years ago.

Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited

Thesaurus

Noun

1.

Paleozoic era - from 544 million to about 230 million years ago Paleozoic Permian, Permian period - from 280 million to 230 million years ago; reptiles Carboniferous, Carboniferous period - from 345 million to 280 million years ago Age of Fishes, Devonian, Devonian period - from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites Silurian, Silurian period - from 425 million to 405 million years ago; first air-breathing animals Ordovician, Ordovician period - from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds Cambrian, Cambrian period - from 544 million to about 500 million years ago; marine invertebrates

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