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Timeline of Major Events

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1/12

Terms in this set (12)

  • Possible evidence of life

    3.8-3.5 bya

  • first (trace) fossil

    3.4 bya

  • Great Oxidation

    2.4 bya

  • first eukaryote

    1.8 bya

  • first multicellular life

    2.1-1.6 bya

  • formation of earth

    4.54 bya

  • First photosynthetic life

    3.5 bya (non oxygenic)

    2.4 bya (cyanobacteria)

  • first land plants

    470-500 mya

  • Cambrian Explosion

    started ~538 mya

  • First Tetrapods

    390 mya

  • first mammals

    225 mya

  • First Homo sapiens

    300k ya