linea de tiempo patricia

By Patricia777
  • Period: 4600 BCE to 540 BCE

    Precambrian

    GEOLOGICAL EVENT: First ocean
    CLIMATE EVENT: First Glaciation
    FOSIL GUIDE: Estromatolites
  • First unicelular form
    3800 BCE

    First unicelular form

    Los primeros seres vivos fueron bacterias procariotas y unicelulares
  • Period: 570 BCE to 250 BCE

    Paleozoic

    GEOLOGICAL EVENT: Creacion del Super continente Pangea
    CLIMATE EVENT: Elevados niveles CO2
    FOSIL GUIDE: Trilobites
  • Most Complex Life Form
    520 BCE

    Most Complex Life Form

    Cambrian: First vertebrates
  • First Land Plants (gymnosperm)
    477 BCE

    First Land Plants (gymnosperm)

  • First arthropods
    413 BCE

    First arthropods

  • Fish Age
    317 BCE

    Fish Age

    Devonian: First FIshes on the earth
  • Period: 220 BCE to 65 BCE

    Mesozoic

    GEOLOGICAL EVENT: desplazamiento de los continentes hasta distribución actual
    CLIMATE EVENT: Clima cálido y estable
    FOSIL GUIDE: Ammonites and Belemnites
  • First dinosaurs
    210 BCE

    First dinosaurs

  • Amphibian era
    200 BCE

    Amphibian era

  • Age of reptiles
    145 BCE

    Age of reptiles

  • Angiosperm plants
    67 BCE

    Angiosperm plants

  • Period: 40 BCE to 1 BCE

    Cenozoic

    GEOLOGICAL EVENT: finaliza deriva continental
    CLIMATE EVENT: Últimas glaciaciones
    FOSIL GUIDE: nummulites
  • Last Glaciations
    36 BCE

    Last Glaciations

  • Age of birds
    30 BCE

    Age of birds

  • first homminids
    7 BCE

    first homminids

  • Homosapiens
    2 BCE

    Homosapiens