Geology timeline

By TreVaughn Foster
  • Cambrian

    Cambrian

    The Cambrian period was the beginning of the Paleozoic era, the earliest record of marine life. 570 M - 500 MYA
  • Ordovician

    Ordovician

    Invertabrate were dominant, mpllusks became abundant. Earliest fish that are jawless and later, jawed and armored fish. 500 M - 435 MYA
  • Silvrian

    Silvrian

    Eariest terrestrial plants and animals. Tiktaalik Eurypterids develop. 435 M - 395 MYA
  • Devionian

    Devionian

    Armored fish go extinct, but abundence of several species of ish. Earliest amphibians and ammonites. 395 M - 345 MYA
  • Carboniferous

    Carboniferous

    Abundant skarks and amphibians. Large swamps and coal forming forest. Earliest reptiles. 345 M - 280 MYA
  • Permian

    Permian

    extinction of many types of marine animals including trilobites. 280 M - 195 MYA
  • Triassic

    Triassic

    Earliest dinosaurs, abundant cycads and conifers. 225 M - 195 MYA
  • Jurassic

    Jurassic

    Earliest birds and mammals abundant dinosaurs and ammonites. 195 M - 136 MYA
  • Cretaceous

    Cretaceous

    Earlist flowering [plants, climax of dinosaurs followed by their extinction. Great decline of brochinopods. Abundant of bony fish. 136 M - 65 MYA
  • Tertiary

    Tertiary

    Earlist placental mammals, modern mammals, large running mammals. 65 M - 1.8 MYA
  • Quaternary

    Quaternary

    Large carnivors, neanderthals, humans, mastodon. 1.8 M - Present