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![]() Date: 2009-10-21 11:56:19Pleistocene Extinction Impact events Climate history Holocene Younger Dryas impact hypothesis Younger Dryas Clovis culture Carolina Bay Phanerozoic Geologic time scale Historical geology | Source URL: www.georgehoward.netDownload Document from Source WebsiteFile Size: 169,93 KBShare Document on Facebook |