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Earliest Record of Marine Life.Trilobites are dominant. Oxygen was very rich.
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Invertebrates are dominant. Mollusks became abundant. Earliest fish without a jaw. Ocean still dominant, coral reefs are beginning to form.
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Earliest terrestrial plants and animals. Tiktaalik Eurypterids Develop.
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Armored fish go extinct, but several species of fish appear.
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Coal forming forests, large swamps. abundant amount of sharks, etc.
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Extinction of lots of marine life.
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Earliest dinosaurs, abundant cycads.
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earliest birds and mamals, lots of dinosaurs. Less dinosaurs than the last era.
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Lots of bony fish start appearing everywhere, the climax of the dinosaurs, following with the big meteor that extincts the dinosaurs.
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Large animals are here, same with humans.
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Modern mamals, that are large running animals.
