Saskatchewan is part of a large ancient continent.
2100 BCE
Break up of the ancient continent, creation of a large ocean.
1900 BCE
Volcanoes in Saskatchewan
1850 BCE
Wathaman Batholith (an intrusion of magma under the surface
1800 BCE
Orogeny (mountain building) Trans-Hudson Orogen. Earth changes from an an oxygenic environment to an oxygenic environment. Martin Sandstone is deposited with Stromataolites (mounds created by blue and green algae).
1700 BCE
Erosion of the Mountains
1300 BCE
Uranium deposited
544 BCE
Saskatchewan gets covered by the epicontinental Sauk Sea. Hard shelled invertebrates including Trilobites.
478 BCE
Meteorite hits Sask, leaving behind the Carswell Meteorite Crater.
470 BCE
Tyndall Stone deposited as massive limestone
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 Saskatchewan.
355 BCE
First amphibians
248 BCE
Mass extinction in the oceans, 90% of the species disappear.
245 BCE
First Dinosaurs
220 BCE
First Mammals.
213 BCE
Saskatchewan is again covered by a shallow sea.
100 BCE
Diamonds are brought to the surface of Sask in volcanic pipes.
75 BCE
Shallow sea begins to retreat.
70 BCE
Swamps, rivers, and lakes from the badlands. Lignite (brown coal) is formed from the plants deposited in swamps.
66 BCE
Triceratops roam Saskatchewan
65 BCE
Extinction of the dinosaurs
50 BCE
Climate changes, Saskatchewan plateau develops
2 BCE
Ice age begins, covering Sask except for the Cypress Hills area. Diamonds covered by glacial till.
