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4600 BCE
4600 Earth is formed
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Period: 4600 BCE to 100
Saskatchewan Timeline
This timeline is in Millions -
2500 BCE
2500 Saskatchewan is part of a large ancient continent
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1900 BCE
1900 Volcanoes in SK
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1850 BCE
1850 Wathaman Batholith (an intrusion of magma under the surface)
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1800 BCE
1800 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)
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1700 BCE
1700 Erosion of the mountains
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1300 BCE
1300 Uranium deposited
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544 BCE
544 SK covered by the epicontinental Sauk Sea Hard shelled invertebrates including Trilobites
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478 BCE
478 Meteorite hits SK, leaving behind the Carswell Meteorite Crater
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470 BCE
470 Tyndall Stone deposited as massive limestone
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390 BCE
390 Winnipegosis Reefs are deposited, later to become a trap for oil deposits
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385 BCE
385 Potash is deposited in the shallow sea that covers SK
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355 BCE
355 First amphibians
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248 BCE
248 Mass extinction in the oceans, 90% of the species disappear
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245 BCE
245 First dinosaurs
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220 BCE
220 First mammals
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213 BCE
213 SK is again covered by a shallow sea
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100 BCE
100 Diamonds are brought to the surface of SK in volcanic pipes
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75 BCE
75 Shallow sea begins to retreat
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70 BCE
70 Swamps. rivers and lakes form the badlands. Lignite (brown coal) is formed from the plants deposited in swamps.
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66 BCE
66 Triceratops roam SK
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65 BCE
65 Extinction of the dinosaurs
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50 BCE
50 Climate changes, Saskatchewan plateau develops.
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2 BCE
2 Ice age begins, covering SK except for the Cypress Hills area Diamonds covered by glacial till
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1 CE
.05 Bison come to North America
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2
.02 Humans come to North America
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5
.01 Origin of the Prairies