Geologic Time Scale ( 1 = 1 million years)

By CassidyClow
  • 4600 BCE

    Earth is Formed

  • 4600 BCE

    Archean Eon

  • 2500 BCE

    Saskatchewan is part of a large ancient continent

  • 2500 BCE

    Proterozoic Eon

  • 2100 BCE

    Break up of the ancient continent, creation of large ocean

  • 1900 BCE

    Volcanoes in Saskatchewan

  • 1850 BCE

    Wathaman Batholith

  • 1800 BCE

    Orogeny Trans-Hudson Orogen, Earth changes from an anoxygenic environment to an oxygenic environment, Martin Sandstone is deposited

  • 1700 BCE

    Erosions of the mountains

  • 1300 BCE

    Uranium Deposited

  • 544 BCE

    Saskatchewan covered by the epicontinental Sauk Sea, Hard shelled invertabrates including Trilobites

  • 544 BCE

    Phanerozoic Eon

    Paleozoic Era
  • 544 BCE

    Cambrian Period

  • 489 BCE

    Odovician Period

  • 478 BCE

    Meteorite hits Sasktatchewan leaving behind the Carswell Meteorite Crater

  • 470 BCE

    Tyndall Stone deposited as massive limestone

  • 433 BCE

    Silurian Period

  • 418 BCE

    Devonian Period

  • 390 BCE

    Winnipegosis Reefs are depostied, later to become a trap for oil deposits

  • 385 BCE

    Potash is deposited in the shallow sea that covers SK

  • 360 BCE

    Carboniferous Period

  • 355 BCE

    First amphibians

  • 300 BCE

    Permian Period

  • 253 BCE

    Mesozoic Era

    Triassic Period
  • 248 BCE

    Mass extinction in the oceans, 90% of species disappear

  • 245 BCE

    First dinosaurs

  • 220 BCE

    First mammals

  • 213 BCE

    Sasktchewan is covered by a shallow sea

  • 200 BCE

    Jurassic Period

  • 144 BCE

    Cretaceouss Period

  • 100 BCE

    Diamonds are brought to the surface of SK in volcanic pipes

  • 75 BCE

    Shallow sea begins to retreat

  • 70 BCE

    Swamps, rivers and lakes form the badlands, lignite is formed from the plants deposited in swamps

  • 66 BCE

    Triceratops roam SK

  • 65 BCE

    Extinction of the dinosaurs

  • 65 BCE

    Cenozoic Era

    Tertiary Period - Paleocene Epoch
  • 55 BCE

    Eocene Epoch

  • 50 BCE

    Climate changes, SK plateau develops

  • 34 BCE

    Oligocene Epoch

  • 23 BCE

    Miocene Epoch

  • 5 BCE

    Pliocene Epoch

  • 2 BCE

    Ice age begins, covering SK except for Cypress Hills are, Diamonds covered by glacial till

  • 2 BCE

    Quaternary Period

    Pleistocene Epoch

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