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EVOLUTION

By LaiaPeire
  • Earth's Formation
    4500 BCE

    Earth's Formation

    4.500.000.000 years ago Earth was formed.
  • The first organic molecules
    4000 BCE

    The first organic molecules

    4.000.000.000 years ago the first organic molecules appeared from inorganic matter.
  • Life appears. Prokaryotic cells.
    3500 BCE

    Life appears. Prokaryotic cells.

    3.500.000.000 years ago, the first prokaryotic cells appeared. This first cell was stromatolytes and it was photosynthetic.
  • Oxygen in the air
    1800 BCE

    Oxygen in the air

    1.800.000.000 years ago the oxygen appeared in air and atmosphere turned from reducing to oxidizing.
  • Fisrt eukaryotic cells
    1400 BCE

    Fisrt eukaryotic cells

    1.400.000.000 years ago the first eukaryotic cells appeared.
  • Multicellular organisms. Cambrian life’s explosion
    600 BCE

    Multicellular organisms. Cambrian life’s explosion

    6.000.000.000 years ago thanks to cell differentiation multicellular organisms were formed, creating more variety of species.
  • 500 BCE

    First vertebrates

  • Dinosaurs and mammals coexist.
    200 BCE

    Dinosaurs and mammals coexist.

  • Dinousaur's extintion
    65 BCE

    Dinousaur's extintion

    A catastrophic mundial change of the environment ended with the life of these giant species.
  • Primates
    65 BCE

    Primates

    Primates are the offsprings of different prehistoric mammals.
  • Austrolopitecus
    4 BCE

    Austrolopitecus

    Primates started evolutionating.