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The Cambrian period had an abundant amount of life in the ocean. Water Also dominated Earth covering 90% of the surface.
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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.
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The Silurian Period occured over 400 million years ago and was when Continents began to move around.
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The Devonian Period was where life could finally excel due to habitable regions.
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The Carboniferous period got it's name from the large amounts of coal during the time.
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The Permian period is when the animals of the world diversified into 4 groups known as mammals, reptiles, archosaurs and lepidosaurs.
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Earliest dinosaurs. Abundant cycades and conifers.
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Earliest birds and mammals. Abundant dinosaurs and ammonites.
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Earliest flowers. Climax of dinosaurs followed by extinction. Great decline of brachiopods. Great developement of bony fish.
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Non-avian dinosaurs die off and ended around an ice age.
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The current period that we live in. Has only been around for 2.5 million years.
