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Period: to
Earth
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Cambrian 570-500 M.
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Paleozoic Period
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Ordovician 500-435 M.
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Silurian 435-395 M.
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Devonian 395-345 M
Armored fish go extinct, abundance of fish, earliest amphibians. -
Carboniferous 345-280 M
Abundant sharks and amphibians, earliest reptiles and coal producing forests. -
Permian 280-225 M
Extinction of many marine animals. -
Triassic 225-195 M
Earliest dinosuars. -
Mesozoic Period
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Jurassic 195-136 M
Earliest birds, abundant dinosuars. -
Cretaceous 136-65 M
Earliest flowering plants, climax of dinosuars. -
Teritary 65-1.8 M
Earliest mammals. -
Quaternary 1.8- Present
Large carnivours neandrethals, humans.