Earth's Geologic Timeline

By tristen69
  • Cambrian Period- 570-500 MYA

    Cambrian Period- 570-500 MYA

    Trilabites were dominant. Marine life was abundent. Atmosphere was oxygen rich.
  • Ordovician Period 500-435 MYA

    Ordovician Period 500-435 MYA

    Molluscs become abundant. Earliest fish are jawless.
  • Silurian Period 435-395 MYA

    Silurian Period 435-395 MYA

  • Devonian Period 395-345 MYA

    Devonian Period 395-345 MYA

    Earliest amphibians. Armoured fish go extinct.
  • Carboniferous Period 345-280 MYA

    Carboniferous Period 345-280 MYA

    Lots of sharks and amphibians
  • Permian Period 280-225 MYA

    Permian Period 280-225 MYA

    Extinction of many types of marine animals.
  • Triassic Period 225-195 MYA

    Triassic Period 225-195 MYA

    Earliest Dinosaurs. Abundant cycads and conifers.
  • Jurassic Period 195-136 MYA

    Jurassic Period 195-136 MYA

    Lots of dinosaurs and early birds and mammals
  • Cretaceous Period

    Cretaceous Period

    Earliest flowering plants. Climax of dinosaurs followed by their extinction. Great decline of brachiopads. Abundance of bony fish.
  • Tetiary Period 65-1.8

    Tetiary Period 65-1.8

    Ealiest plancental mammals. Large running mammals.
  • Quaterny Period 1.8-Present

    Quaterny Period 1.8-Present

    Large carnivores. Neanderthals, humans, mastadons

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