Geological time scale

By Rcole9
  • 5 BCE

    bison come to North America

  • 2 BCE

    humans come to North America

  • 1 BCE

    origin of the praries

  • Period: 1 CE to

    geological time scale

  • 2

    ice age begins covering sk except cypress hills area

  • 50

    climate changes sask plateau developes

  • 65

    extinction of dinosaurs

  • 66

    Triceraptops roam sk

  • 70

    swamps rivers and lakes form badlands

  • 75

    shallow sea begins to retreat

  • 100

    diamonds are brought to surface is sk volcanic pipes

  • 213

    sk is covered by shallow sea

  • 220

    first mamal

  • 245

    first dinosaur

  • 248

    mass extinction in oceans 90% od specis disappear

  • 355

    First amphibians

  • 385

    Winnipegosis reefs are deposited, later become a trap for oil deposites.

  • 470

    tyndall stone deposited as massive limestone

  • 478

    meterite hits sk leaving behind Carswell meterite crater

  • 544

    sk covered by the epicontinetial sauk Sea hard shelled invertebrates

  • 1300

    uranium deposited

  • Erosion of mountains

  • Orogeny (mountain building) trans hudson orogen earth changes from anoxygenic environment to an oxygenic environment

  • wathaman batholith (an intrusion of magma under the surface)

  • Volcanoes in Sk

  • break up of the ancient continent, creation of large continent

  • Saskatchewan is a large part of a large ancient continent

  • earth is formed