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Tag Archives: Geologic History Chart

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Geologic History Chart

ScienceBy William Anderson (Schoolworkhelper Editorial Team)December 30, 2010Leave a comment

Era Time Millions of Yrs Ago Began — Ended Major Geological Events Major Biological Events Canadian Landforms Created Precambrian (earliest life) 4600 570 – volcanoes erupted, many cycles of mountain building and erosion – 1st single-celled organisms – 1st multi-celled organisms – Canadian Shield formed Paleozoic (ancient life) 570 245 – periods when large parts…

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