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Cambrian period, beggining of the Pelozoic, first time multicellula life forms flourished the Earth.
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Earliest terrestrial plants and animals.
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Armored fish go extinct, but abundance of several species of fish. Ealiest amphibian ammonites.
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Abundant sharks and amphibians large swamps and coal forming forests.Earliest raptiles. Scale trees and seed ferns.
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Extinction of many types of marine animals including trilobites.
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Earliest dinosaurs.
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Earliest birds and mammals. Abundant dinosaurs and ammonites.
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Earliest flowering plants, climax of dinosaurs, followed by there extinction. Great decline of branchiopads. Abundants of bony fish.
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Earliest placement mammals modern mammals large running mammals.
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LArge carnivores Neanderthals, humans astondons.
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