Geological Timeline

  • Period: 541 BCE to 250 BCE

    Paleozoic ERA

    Age of invertebrates
  • Cambriano
    500 BCE

    Cambriano

    Many marine invertebrates with external skeleton
  • Ordovician
    460 BCE

    Ordovician

    widespread marine algae
  • Silurian
    420 BCE

    Silurian

    first plants
  • Devonian
    370 BCE

    Devonian

    fish diversity, first anphibians
  • Carboniferous
    325 BCE

    Carboniferous

    first reptiles, forest of giants ferms
  • Permian
    270 BCE

    Permian

    reptiles diversity
  • Period: 252 BCE to 66 BCE

    Mezozoic ERA

    Age of dinosaurs
  • Triassic
    225 BCE

    Triassic

    first dinosaurs, first mammals, the Earth's greatest extinction occurs Pangea forms
  • Jurassic
    160 BCE

    Jurassic

    dinosaurs diversity, first flying and aquatic reptiles
  • Cretaceous
    90 BCE

    Cretaceous

    first plants with flowers, extinction of dinosaurs and ammonites
  • Period: 66 BCE to 2 BCE

    Cenozoic Era

    Massive extintion from metheorite
  • Tertiary
    25 BCE

    Tertiary

    development and diversitification of mamals
  • Quaternary
    15

    Quaternary

    first humans