Geology Timeline

By karsen.doe

  • Cambrian 570-500 million years ago

    Cambrian 570-500 million years ago
    it was the time when most of the major groups of animals first appear in fossil record known as the cambrian explosion.

  • Ordovician 500-430 Million Years Ago

    invertebrates are dominant, Earliest fish come around and are jawless.

  • Silurian 435-395 Million Years Ago

    Earliest terrestrial plants and animals and tiktaalik Eurupterids develop

  • Devonian 395-345 Million Years Ago

    Armored fish go extinct , but abundance of several species of fish earliest amphibians and ammonites.

  • Carboniferous 345-280 Million Years Ago

    Abundant sharks and amphibians and large swamps and coal forming forests.

  • Permian 280-225 Million Years Ago

    Extinction of many types of marine animals including trilobytes.