Jason's Timeline

By Jellyphish
  • Period: 500 BCE to 435 BCE

    Ordovician

    Invertebrates are dominant and mollusks become abundant
  • Period: 435 BCE to 395 BCE

    Silurian

    Earliest terrestrial plants and animals
  • Period: 395 BCE to 345 BCE

    Devonian

    Armored fish go extinct. Earliest sign of amphibians
  • Period: 345 BCE to 280 BCE

    Carboniferous

    Abundant sharks,amphibians,large swamps and coal mining forests
  • Period: 225 BCE to 195 BCE

    Triassic

    Earliest dinosaurs, abundant cycads and conifers
  • Period: 195 BCE to 136 BCE

    Jurassic

    Earliest birds and mammals. Abundant dinosaurs
  • Period: 136 BCE to 65 BCE

    Cretaceous

    Earliest flowering plants. Climax of the dinosaurs
  • Period: 570 to 500 BCE

    Cambrian

    Earliest record of marine life