Cambrian Period

By larissateddy
  • Period: to

    Cambrian Period

    Each year represents 1 million years. The Cambrian Period ranged from 570 million years ago to 540 million years ago.

  • Treptichnus Pedum Trace

    Treptichnus Pedum Trace

  • First Halkieriids Appear

    First Halkieriids Appear

  • First Mollusсs Appear

    First Mollusсs Appear

  • First Hyoliths Appear

    First Hyoliths Appear

  • First Brachiopods Appear

    First Brachiopods Appear

  • First Archaeocyatha Appear

    First Archaeocyatha Appear

  • First Rusophycus Traces

    First Rusophycus Traces

  • First Arthropods With Mineralized Carapace (Trilobites)

    First Arthropods With Mineralized Carapace (Trilobites)

  • Cambrian Explosion

    Cambrian Explosion

  • Sirius Passet and Chengjiang Biotas

    Sirius Passet and Chengjiang Biotas

  • Hard-Shelled Mollusks Appear

    Hard-Shelled Mollusks Appear

  • First Chelicerates Appear

    First Chelicerates Appear

  • First Crustaceans Appear

    First Crustaceans Appear

  • Gondwana Breaks Apart

    Gondwana Breaks Apart
    The supercontinent breaks apart and different pieces collide to form mountains.

  • Emu Bay Shale

    Emu Bay Shale

  • Archaeocyatha Extinction

    Archaeocyatha Extinction

  • Earliest Vertebrates Appear

    Earliest Vertebrates Appear

  • Burgess Shale

    Burgess Shale

  • Orsten Fauna

    Orsten Fauna