The history of the earth

  • earth is formed

    earth is formed

    The sun is formed from the gravvitional collapse of a region within a large molecular cloud.
  • The oxygen enters the atmosphere

    The oxygen enters the atmosphere

    Meteorties bombarded earth bringing along water and other elements. earths atmosphere became or is now mostly made up og carbon dioxide, water vapor.
  • 1st forms of life

    1st forms of life

    First simple cells, oxygen producing bacteria.
  • Pangea is formed

    Pangea is formed

    Pangea existed during the Permian and Triassic geological time periods, which were times of great change
  • Pangaea begins to break up

    Pangaea begins to break up

    In contrast to the present earth and its distribution of continental mass, much of Pangaea was in the southern Hemisphere and surrounded by a super ocean, Panthalassa.
  • 1st multicellular life

    1st multicellular life

    Complex single-cell life appeared
  • 1st eukaryotes

    1st eukaryotes

    Organisms with complex cells containing nucleus appeared
  • 1st Homo sapiens

    1st Homo sapiens

    Sexual reduction appeared increasing the rate of evolution
  • Snowball

    Snowball

    Snaowball earth, the entire earth was covered in ice for many million years.
  • Melting

    Melting

    The the earth then stared melting thanks to the held if the sun but that ment 49% of the animals disappered.
  • Dinosaurs

    Dinosaurs

    First small dinosaurs apprered
  • Extinct

    Extinct

    Dinosaurs became extinct
    Mammals became dominant species. Rapid diversification in ants.
  • Humans

    Humans

    Human and Neanderthal lineages stared to diverge genetically.