The Paleozoic Era - Ms. Alderson's Earth and Space Science ...

Mass Extinction Ends the Paleozoic. At the end of the Paleozoic Era, many kinds of organisms died out. This was a mass extinction, in which many types of living things became extinct at the same time. Scientists hypothesize that climate change resulting from continental drift may have caused the mass extinction at the end of the Paleozoic. ................
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