-
4600 BCE
Archean
-
4600 BCE
Earth is formed
-
2500 BCE
Proterozoic
-
2500 BCE
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 SK
-
1850 BCE
Wathaman Batholith
-
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
-
554 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, 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
-
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
-
1 BCE
Holocene
-
1 BCE
Bison come to North America
-
Humans come to North America
-
Origin of the Prairies