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![]() Date: 2002-07-11 09:18:29Extinction events Marine regression Hirnantian Ordovician–Silurian extinction event Late Devonian extinction Permian–Triassic extinction event Permian Triassic–Jurassic extinction event Cretaceous–Tertiary extinction event Geologic time scale Phanerozoic Geology | Source URL: studentresearch.wcp.muohio.eduDownload Document from Source WebsiteFile Size: 636,05 KBShare Document on Facebook |