-
Period: 100 to 1 CE
Cenozoic Era- 100 MYA- .01 MYA
100 MYA- diamonds are brought to earth by volcanic pipes
75 MYA- shallow sea retreats
70 MYA- Swamps Rivers and lakes form badlands, brown coal from plants in swamps
66 MYA- Tricaretops roam Sask
65 MYA- Extinction of dinosaurs
50 MYA- Climate changes, Saskatchewan Plateu develops
2 MYA- ice age begins covering sask except cypress hills, diamonds covered by glacial till,
.05 MYA- Bison come to North America
.02 MYA- Humans come to North America
.01 MYA- origin of the praries -
Period: 248 to 213
Mesozoic Era- 248 MYA- 213 MYA
248 MYA- Mass extinction in the oceans, 90% of species dissapear
245 MYA- first Dinosaurs
220 MYA- First mammals
213 MYA- Sask covered by shallow sea -
Period: 478 to 355
Paleozoic Era- 478 MYA- 355 MYA
478 MYA- meteorite hits Sask leaving behind carswell metorite crater
470 MYA- Tyndall stone deposited as massive limestones
390 MYA- Winnippegosis Reef are deposited
385 MYA- potash deposited
355 MYA- first amphibians -
Period: to 544
Paleozoic Era- 2100-544 Million Years ago
2100 MYA- Break up of the ancient continent, creation of large oceans
1900 MYA-Volcanoes in sask
1850 MYA-Wathaman Batholith, an intrusion of magma under the surface
1800MYA- mountain building, earth changes from anoxygenic enviroment to oxygenic, mounds created by green algae
1700 MYA-Erosion of mountains
1300 MYA- uranium deposited
544 MYA- Sask covered by the epicont inent al Sauk sea, Hard shelled invertibrates -
Period: to
Archean Eon - Proterozoic Eon- 4600-2500 million years ago
4600 MYA- Earth is formed
2500 MYA-saskatchewan is part of a large ancient continent