Geological timeline

By msabo
  • Period: to

    Precambrian Time

    gental giants

  • first crustal rocks form.

  • Earths surface is cool enough for liquid water

  • first known unicellular life appears

    article

  • Earths atmoosphere starts to become oxygen rich

    facts
  • first known multicellular life appears

    first known multicellular life appears

  • first fungi appear

  • First shelled organisms such as arthopods and mollusks appear

    First shelled organisms such as arthopods and mollusks appear

  • Period: to

    The Paleozoic Era

  • First possible vertebrates appear

    First possible vertebrates appear

  • Modern, oxygen-rich atmosphere has formed

    Modern, oxygen-rich atmosphere has formed

  • First known unicellular life appears

    First known unicellular life appears

  • First anthropods, amphibians, and reptiles appear.

    First anthropods, amphibians, and reptiles appear.

  • Formation of pangea is complete.

    Formation of pangea is complete.

  • Permian mass extinction results from major enviornmental changes

  • Period: to

    The Mesozoic Era

    dino
  • Pangea begins to break apart

    Pangea begins to break apart

  • The last dinosaurs become extinct. catastrophic metorite impact occurs

    The last dinosaurs become extinct. catastrophic metorite impact occurs

  • First mammals, primitive birds, flowering plants, and modern birds appear.

    First mammals, primitive birds, flowering plants, and modern birds appear.

    mammals
  • Period: to

    The Cenozoic era

  • Most modern mammal families, including whales, carnivores, hoofed animals, primates, and first grasses appear.

    Most modern mammal families, including whales, carnivores, hoofed animals, primates, and first grasses appear.

  • india collides with asia, and antartica drifts over the south pole

  • First hominids(early human ansestors) appear.

    First hominids(early human ansestors) appear.

  • modern ice age begins

    modern ice age begins

  • modern humans appear

    modern humans appear