Robert Shaw

By Rshaw
  • 570 BCE

    Cambrian Period- 570 - 500 MYA

    Cambrian Period- 570 - 500 MYA
    A time period where marine life was most prominent.
  • 488 BCE

    Ordovician period

    Ordovician period
    the whole tropic hemisphere is entirely ocean and the southern hemisphere is the supercontinent Gondwana.
  • 448 BCE

    Silurian period

    Silurian period
    Not much has changed, Marine life still thrive underwater.
  • 419 BCE

    Devonian period

    Devonian period
    Marine life evolves into more complex life.
  • 358 BCE

    Carboniferous

    Carboniferous
    Has highest oxygen levels in the world's entire history and large amounts of swamps formed.
  • 298 BCE

    Permian

    Permian
    Pangea was made, the ancestors of mammals lived in this time period.
  • 252 BCE

    Triassic period

    Triassic period
    Diverse life began outside of marine animals.
  • 199 BCE

    Jurassic Period

    Jurassic Period
    Dinosaurs began to dominate the Earth and Pangea split apart to the continents that we have today.
  • 145 BCE

    Cretaceous period

    Cretaceous period
    The mass extinction of almost all life occurred when a meteor hit the Earth triggering massive amounts of volcanic eruptions causing all life to die out due to the toxic fumes spread all over the ozone
  • 66 BCE

    Tertiary period

    Tertiary period
    Continents had not yet settled in to where they are now today. Mammals we live with today began to dominate the Earth.
  • 1 BCE

    Quaternary period

    Quaternary period
    Humans began to walk the Earth and evolve