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![]() Date: 2012-08-08 09:00:44Plate tectonics Supercontinents Geological history of Earth Permian Mesozoic Continental drift Alfred Wegener Pangaea Tectonics Geology Geologic time scale Phanerozoic | Source URL: pubs.usgs.govDownload Document from Source WebsiteFile Size: 3,80 MBShare Document on Facebook |