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 Earth 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
Phanerozoic, Paleozoic, Cambrian
544 BCE
SK covered by the epicontinental Sauk Sea Hard shelled invertebrates including Trilobites
489 BCE
Ordovician
478 BCE
Meteorite hits SK, leaving behind the Carswell Meteorite Crater
470 BCE
Tyndall Stone deposited as massive limestone
433 BCE
Silurian
418 BCE
Devonian
390 BCE
Winnipegosis Reefs are deposited, later to become a trap for oil deposits
385 BCE
Potash is deposited in the shallow sea that covers SK
360 BCE
Carboniferous
355 BCE
First amphibians
300 BCE
Permian
253 BCE
Mesozoic ,Triassic
248 BCE
Mass extinction in the oceans, 90% of the species disappear
245 BCE
First dinosaurs
220 BCE
First mammals
213 BCE
SK is again covered by a shallow sea
200 BCE
Jurassic
144 BCE
Cretaceous
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 (brown coal) is formed from the plants deposited in swamps.
66 BCE
Triceratops roam SK
65 BCE
Cenozoic Tertiary Paleocene
65 BCE
Extinction of the dinosaurs
55 BCE
Eocene
50 BCE
Climate changes, Saskatchewan plateau develops.
34 BCE
Oligocene
34 BCE
Oligocene
23 BCE
Miocene
5 BCE
Pliocene
2 BCE
Quaternary Pleistocene
2 BCE
Ice age begins, covering SK except for the Cypress Hills area Diamonds covered by glacial till