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