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Cambrian Period 570 MYA - 500 MYA
The Cambrian period had an abundant amount of life in the ocean. Water Also dominated Earth covering 90% of the surface. -
Ordovician 485 MYA - 440 MYA
The ordovician era was well known for having a diverse group of aquatic animals. Around this time, life was being protected by the ozone layer. -
Silurian 443MYA - 416MYA
The Silurian Period occured over 400 million years ago and was when Continents began to move around. -
Devonian Period 419MYA - 358MYA
The Devonian Period was where life could finally excel due to habitable regions. -
Carboniferous Period 359MYA - 299MYA
The Carboniferous period got it's name from the large amounts of coal during the time. -
Permian Period 300MYA - 252MYA
The Permian period is when the animals of the world diversified into 4 groups known as mammals, reptiles, archosaurs and lepidosaurs. -
Triassic 250MYA - 200MYA
Earliest dinosaurs. Abundant cycades and conifers. -
Jurassic Period 200MYA - 145MYA
Earliest birds and mammals. Abundant dinosaurs and ammonites. -
Cretaceous Period 145MYA - 65MYA
Earliest flowers. Climax of dinosaurs followed by extinction. Great decline of brachiopods. Great developement of bony fish. -
Tertiary Period 66MYA - 2.5MYA
Non-avian dinosaurs die off and ended around an ice age. -
Quaternary Period 2.6 MYA - Now
The current period that we live in. Has only been around for 2.5 million years.
