Geological timeline

By Natalia159
  • 541 BCE

    Marine life diversifies enormously

    Marine life diversifies enormously
    -Many marine invertebrates with external skeletons (arthropods)(Cambrian)
    - Widespread marine algae(Ordovician)
    -Fish without jaws(Ordovician)
  • 541 BCE

    Rodinia breaks up

    Rodinia was a supercontinent that brought together a large part of the earth's landmass, which began to break down due to magmatic movements in the earth's crust, accompanied by strong volcanic activity.
  • Period: 541 BCE to 252 BCE

    Paleaozoic Era

  • Period: 541 BCE to 485 BCE

    Cambrian

  • Period: 485 BCE to 444 BCE

    Ordovician

  • 444 BCE

    First great extinction

    First great extinction
    -First land plants(Silurian)
    -Fish diversify(Devonian)
    -First amphibians(Devonian)
    -Forests of giant ferns(Carboniferous)
    -First reptiles(Carboniferous)
    -Reptiles diversify(Permian)
  • 444 BCE

    Caledonian orogery

    The Caledonian orogeny was a mountain-building process that occurred in Scotland, Ireland, England, Wales, and western Norway.
  • Period: 444 BCE to 419 BCE

    Silurian

  • Period: 419 BCE to 359 BCE

    Devonian

  • 359 BCE

    Pangea forms

    Pangea was the great supercontinent that existed at the end of the Paleozoic era and the beginning of the Mesozoic era, which included most of the landmass on the planet.
  • Period: 359 BCE to 299 BCE

    Carboniferous

  • Period: 299 BCE to 252 BCE

    Permian

  • 252 BCE

    The Earth greatest extinction occurs Pangea forms

    The Earth greatest extinction occurs Pangea forms
    -First dinosaurs(Tirassic)
    -Firs mammals(Tirassic)
    -Gymnosperm plants dominate the Earth's surface(Jurassic)
    -Dinosaurs diversify(Jurassic)
    -First flying and aquatic reptiles(Jurassic)
    -First birds(Jurassic)
    -First plants with flowers(Cretaceous)
    -Extinction of dinosaurs and anmonites(Cretaceous)
  • Period: 252 BCE to 66 BCE

    Mesozoic Era

  • Period: 252 BCE to 201 BCE

    Tirassic

  • 201 BCE

    Pangea begins to break up

    Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle.
  • Period: 201 BCE to 145 BCE

    Jurassic

  • Period: 145 BCE to 66 BCE

    Cretaceous

  • 66 BCE

    Massive extinction from meteorite impact

    Massive extinction from meteorite impact
    -Development and diversification of mammals(Tertiary and Quaternary)
  • 66 BCE

    Alpine orogeny begins

    The Alpine Orogeny is a mountain-building stage that occurred during the Cenozoic, when Africa, the Indian subcontinent, and the small Cimmerian plate collided with Eurasia.
  • Period: 66 BCE to 2

    Cenozoic Era

  • Period: 66 BCE to 2 BCE

    Tertiary

  • Period: 2 BCE to 20

    Quaternary