Geological Timeline

By kautz23
  • Cambrian period 570m-500m

    Cambrian period 570m-500m

    earliest record of marine life. Trilobites are abundent during this time period.
  • ordovicaian period

    ordovicaian period

    starfish, sand dollar, sea urchin, and sea cucumbers were a few species during this time. invertebrates are dominant, and molluks become abundant. The earliest fish were born and they were jawless, but they latere jawed and armored. This period started at 500m years and ended on 435m years.
  • silurian period 435-395 mya

    silurian period 435-395 mya

    tiktaalik
  • devonian period

    devonian period

    the amored fish got extinct but abundance of several species of fish. earliest amphibiands and amomontities. this period started at 395m y7ears and ended at 345m years.
  • carboniferous period 345-280 mya

    carboniferous period 345-280 mya

    reptiles scales trees seed ferns
  • permian period 280-225 mya

    permian period 280-225 mya

    pangea or the super continent
  • triassic period 225-195 mya

    triassic period 225-195 mya

    earliest dinosaaurs and cycads and conifers
  • Jurassic period 195-136 mya

    Jurassic period 195-136 mya

    earliest birds and mamals
  • Cretaceous period136-65 mya

    Cretaceous period136-65 mya

    Age dinasaurs
  • teritary period-65-1.8 mya

    teritary period-65-1.8 mya

    Age of mamals