Saskatchewan Time Scale

By montana.mcmullen
  • 4600 BCE

    Earth is Formed

  • Period: 4600 BCE to 2500 BCE

    Archean

  • 2500 BCE

    Saskatchewan is part of a large ancient continent

  • Period: 2500 BCE to 544 BCE

    Proterozoic

  • 2100 BCE

    Break up of the ancient continent, creation of a large ocean

  • 1900 BCE

    Volcanoes in SK

  • 1850 BCE

    Wathaman Batholith (an intrusion of Magma under the surface)

  • 1800 BCE

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

  • 1700 BCE

    Erosion of the mountains

  • 1300 BCE

    Uranium deposited

  • 544 BCE

    SK covered by the epicontinental Sauk Sea Hard shelled invertebrates

  • Period: 544 BCE to 489 BCE

    Eon: Phanerozoic Era: Paleozoic Period: Cambrian

  • Period: 489 BCE to 433 BCE

    Period: Ordovician

  • 478 BCE

    Meteorite hits Sk, leaving behind the Carswell Meteorite Crater

  • 470 BCE

    Tyndall Stone deposited as massive limestone

  • Period: 418 BCE to 360 BCE

    Period: Devonian

  • 390 BCE

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

  • 385 BCE

    Potash is deposited in the shallow sea that covers Sk

  • Period: 360 BCE to 300 BCE

    Period: Carboniferous

  • 355 BCE

    First Amphibians

  • Period: 253 BCE to 200 BCE

    Era: Mesozoic Period: Triassic

  • 245 BCE

    First Dinosaurs

  • 220 BCE

    First Mammals

  • 213 BCE

    Sk is again covered by a shallow sea

  • Period: 144 BCE to 65 BCE

    Period: Cretaceous

  • 100 BCE

    Diamonds are brought to the surface of Sk volcanic pipes

  • 75 BCE

    Shallow sea begins to retreat

  • 70 BCE

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

  • 66 BCE

    Triceratops roam Sk

  • 65 BCE

    Extinction of the dinosaurs

  • Period: 55 BCE to 34 BCE

    Epoch; Eocene

  • 50 BCE

    Climate changes, Saskatchewan plateau develops

  • 2 BCE

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

  • Period: 2 BCE to 1 BCE

    Period: Quaternary Epoch: Pleistocene

  • 1 BCE

    Bison come to North America

  • 1 BCE

    Humans come to North America

  • 1 BCE

    Origin of the Praries

  • 248

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