Earths Geologic Timeline

By bannicam

  • Cambrian 550m-500MYA

    Cambrian 550m-500MYA
    Earliest Record of Marine Life.Trilobites are dominant. Oxygen was very rich.

  • Ordovician 500-435MYA

    Ordovician 500-435MYA
    Invertebrates are dominant. Mollusks became abundant. Earliest fish without a jaw. Ocean still dominant, coral reefs are beginning to form.

  • Silurian 435-395MYA

    Silurian 435-395MYA
    Earliest terrestrial plants and animals. Tiktaalik Eurypterids Develop.

  • Devonian 395-345MYA

    Devonian 395-345MYA
    Armored fish go extinct, but several species of fish appear.

  • Carboniferous 345-280MYA

    Carboniferous 345-280MYA
    Coal forming forests, large swamps. abundant amount of sharks, etc.

  • Permian 280-225MYA

    Permian 280-225MYA
    Extinction of lots of marine life.

  • Triassic 225-195MYA

    Triassic 225-195MYA
    Earliest dinosaurs, abundant cycads.

  • Jurassic 195-136MYA

    Jurassic 195-136MYA
    earliest birds and mamals, lots of dinosaurs. Less dinosaurs than the last era.

  • Cretaceous 136-65 MYA

    Cretaceous 136-65 MYA
    Lots of bony fish start appearing everywhere, the climax of the dinosaurs, following with the big meteor that extincts the dinosaurs.

  • Quaternary 1.8MYA - Present

    Quaternary 1.8MYA - Present
    Large animals are here, same with humans.

  • Tertiary 65-1.8MYA

    Tertiary 65-1.8MYA
    Modern mamals, that are large running animals.