2.6 Saskatchewan Time Scale

  • Earth is Formed
    4600 BCE

    Earth is Formed

    4,600 million years ago
  • Period: 4600 BCE to 2500 BCE

    Archean Eon

  • 2500 BCE

    Saskatchewan is Part of a Large Ancient Continent

    2500 million years ago
  • Period: 2500 BCE to 544 BCE

    Proterozoic Eon

  • Break up of Ancient Continent, Creation of a Large Ocean
    2100 BCE

    Break up of Ancient Continent, Creation of a Large Ocean

    2100 million years ago
  • Volcanoes in Saskatchewan
    1900 BCE

    Volcanoes in Saskatchewan

    1900 million years ago
  • 1850 BCE

    Wathaman Batholith (Intrusion of Magma)

    1850 million years ago
  • Orogeny, Earth Becomes Oxygenic, Sandstone, Stromatolites
    1800 BCE

    Orogeny, Earth Becomes Oxygenic, Sandstone, Stromatolites

    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) 1800 million years ago
  • Erosion of Mountains
    1700 BCE

    Erosion of Mountains

    1700 million years ago
  • Uranium Deposited
    1300 BCE

    Uranium Deposited

    1300 million years ago
  • SK Covered by Sea, Trilobites
    544 BCE

    SK Covered by Sea, Trilobites

    SK covered by the epicontinental Sauk Sea, hard shelled invertebrates including Trilobites 544 million years ago
  • Period: 544 BCE to 489 BCE

    Phanerozoic Eon

    Also the Paleozoic Era and the Cambrian Period
  • Period: 489 BCE to 433 BCE

    Ordovician Period

  • Meteorite Hits SK, Carswell Meteorite Crater
    478 BCE

    Meteorite Hits SK, Carswell Meteorite Crater

    478 million years ago
  • Tyndall Stone, Limestone
    470 BCE

    Tyndall Stone, Limestone

    470 million years ago
  • Period: 433 BCE to 418 BCE

    Silurian Period

  • Period: 418 BCE to 360 BCE

    Devonian Period

  • Winnipegosis Reefs are Deposited
    390 BCE

    Winnipegosis Reefs are Deposited

    Later to become a trap for oil deposits 390 million years ago
  • Potash is Deposited
    385 BCE

    Potash is Deposited

    385 million years ago
  • Period: 360 BCE to 300 BCE

    Carboniferous Period

  • First Amphibians
    355 BCE

    First Amphibians

    355 million years ago
  • Period: 300 BCE to 253 BCE

    Permian Period

  • Period: 253 BCE to 200 BCE

    Mesozoic Era

    Also the Triassic Period
  • 90% of Ocean Species Extinct
    248 BCE

    90% of Ocean Species Extinct

    248 million years ago
  • First Dinosaurs
    245 BCE

    First Dinosaurs

    245 million years ago
  • First Mammals
    220 BCE

    First Mammals

    220 million years ago
  • SK is Covered by a Shallow Sea Again
    213 BCE

    SK is Covered by a Shallow Sea Again

    213 million years ago
  • Period: 200 BCE to 144 BCE

    Jurassic Period

  • Period: 144 BCE to 65 BCE

    Cretaceous Period

  • Diamonds are Brought to the Surface
    100 BCE

    Diamonds are Brought to the Surface

    100 million years ago
  • 75 BCE

    Shallow Sea Begins to Retreat

    75 million years ago
  • Swamps, Rivers, Lakes Form the Badlands. Lignite
    70 BCE

    Swamps, Rivers, Lakes Form the Badlands. Lignite

    70 million years ago
  • Triceratops Roam SK
    66 BCE

    Triceratops Roam SK

    66 million years ago
  • 65 BCE

    Extinction of the dinosaurs

    65 million years ago
  • Period: 65 BCE to 55 BCE

    Cenozoic Era

    Also the Tertiary Period and the Paleocene Epoch
  • Period: 55 BCE to 34 BCE

    Eocene Epoch

  • Climate Change, Plateaus
    50 BCE

    Climate Change, Plateaus

    50 million years ago
  • Period: 34 BCE to 23 BCE

    Oligocene Epoch

  • Period: 23 BCE to 5 BCE

    Miocene Epoch

  • Bison Arrive in North America
    5 BCE

    Bison Arrive in North America

    .05 million years ago
  • Period: 5 BCE to 2 BCE

    Pliocene Epoch

  • Ice Age Begins
    2 BCE

    Ice Age Begins

    2 million years ago
  • 2 BCE

    Humans Arrive in North America

    .02 million years ago
  • Period: 2 BCE to 1 BCE

    Quaternary Period

    Also the Pleistocene Epoch
  • Origin of the Praries
    1 BCE

    Origin of the Praries

    .01 million years ago
  • Period: 1 CE to 1 CE

    Holocene Epoch