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Sask time scale

By Andrew.C
  • 4600 BCE

    The Earth is formed

    Eon: Archean
  • 2500 BCE

    Saskatchewan is part of a ancient continent

    Eon: Proterozoic
  • 2100 BCE

    The ancient continent breaks and creates a large ocean

    Eon: Proterozoic
  • 1900 BCE

    Volcanoes form in Saskatchewan

    Eon: Proterozoic
  • 1850 BCE

    Wathaman Batholith (an intrusion of magma under the surface)

    Eon: Proterozoic
  • 1800 BCE

    Orogeny (mountain building) Trans-Hudson Orogen Earth changes from an anoxygenic environment to an oxygenic environment Martin Sandstone is deposited with Stromatolites (mounds created by blue green algae)

    Eon: Proterozoic
  • 1700 BCE

    Erosion of the mountains

    Eon: Proterozoic
  • 1300 BCE

    Uranium deposited

    Eon: Proterozoic
  • 544 BCE

    SK covered by the epicontinental Sauk Sea Hard shelled invertebrates including Trilobites

    Eon: Phanerozoic Era: Paleozoic Period: Cambrian
  • 478 BCE

    Meteorite hits SK, leaving behind the Carswell Meteorite Crater

    Eon: Phanerozoic Era: Paleozoic Period: Ordovician
  • 470 BCE

    Tyndall Stone deposited as massive limestone

    Eon: Phanerozoic Era: Paleozoic Period: Ordovician
  • 390 BCE

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

    Eon: Phanerozoic Era: Paleozoic Period: Devonian
  • 355 BCE

    First amphibians

    Eon: Phanerozoic Era: Paleozoic Period: Carboniferous
  • 248 BCE

    Mass extinction in the oceans, 90% of the species disappear

    Eon: Phanerozoic Era: Mesozoic Period: Triassic
  • 245 BCE

    First dinosaurs

    Eon: Phanerozoic Era: Mesozoic Period: Triassic
  • 220 BCE

    First mammals

    Eon: Phanerozoic Era: Mesozoic Period: Triassic
  • 213 BCE

    Saskatchewan is again covered by a shallow sea

    Eon: Phanerozoic Era: Mesozoic Period: Triassic
  • 100 BCE

    Diamonds are brought to the surface of SK in volcanic pipes

    Eon: Phanerozoic Era: Mesozoic Period: Cretaceous
  • 75 BCE

    Shallow sea begins to retreat

    Eon: Phanerozoic Era: Mesozoic Period: Cretaceous
  • 70 BCE

    Swamps. rivers and lakes form the badlands. Lignite (brown coal) is formed from the plants deposited in swamps.

    Eon: Phanerozoic Era: Mesozoic Period: Cretaceous
  • 66 BCE

    Triceratops roam SK

    Eon: Phanerozoic Era: Mesozoic Period: Cretaceous
  • 65 BCE

    Extinction of the dinosaurs

    Eon: Phanerozoic Era: Cenozoic Period: Tertiary Epoch: Paleocene
  • 50 BCE

    Climate changes, Saskatchewan plateau develops.

    Eon: Phanerozoic Era: Cenozoic Period: Tertiary Epoch: Eocene
  • 2 BCE

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

    Eon: Phanerozoic Era: Cenozoic Period: Quaternary Epoch: Pleistocene
  • 1 BCE

    Origin of the Prairies

    Eon: Phanerozoic Era: Cenozoic Period: Quaternary Epoch: Holocene
  • 1 BCE

    Bison come to North America

    Eon: Phanerozoic Era: Cenozoic Period: Quaternary Epoch: Pleistocene
  • 1 BCE

    Humans come to North America

    Eon: Phanerozoic Era: Cenozoic Period: Quaternary Epoch: Pleistocene