Linea temporal Biología

  • Period: 543 BCE to 490 BCE

    Cambrian

  • Cambrian
    541 BCE

    Cambrian

    In the Cambrian period, marine invertebrates with external skeleton (Arthpods) appear.
  • Period: 541 BCE to 252 BCE

    PALAEOZOIC ERA

  • Period: 490 BCE to 443 BCE

    Ordovician

  • Ordovician
    485 BCE

    Ordovician

    Widespread marine algae, and fish without jaws
  • Silurian
    444 BCE

    Silurian

    First great extinction, first land plants
  • Period: 443 BCE to 417 BCE

    Silurian

  • Devonian
    419 BCE

    Devonian

    At this stage there was a diversity of marine life, and the first amphibians appeared.
  • Period: 417 BCE to 359 BCE

    Devonian

  • Carboniferous
    359 BCE

    Carboniferous

    The first reptiles and forests of giants ferns appeared.
  • Period: 359 BCE to 299 BCE

    Carboniferous

  • Permian
    299 BCE

    Permian

    Reptile diversity
  • Period: 299 BCE to 252 BCE

    Permian

  • Period: 252 BCE to 66 BCE

    MESOZOIC ERA

  • Triassic
    250 BCE

    Triassic

    Appears the first dinosaurs and mammals
  • Period: 250 BCE to 206 BCE

    Triassic

    The Triassic is an event that lasts approximately 50 years.
    In this period the first dinosaurs and mammals appear.
  • Jurassic
    206 BCE

    Jurassic

    -Appears first flying and aquatic reptiles.
    -Appears the first birds.
    -Gimnosperme plants dominate the earth's surface
  • Period: 206 BCE to 144 BCE

    Jurrasic

  • Cretaceous
    145 BCE

    Cretaceous

    -First plants with flowers.
    -Extinction of dinosaurs and ammonites.
  • Period: 144 BCE to 65 BCE

    Cretaceous

  • Tertiary
    66 BCE

    Tertiary

    -Alpine orogey begins
    -masive extinction from a meteorite impact
  • Period: 66 BCE to 2

    Tertiary

  • Period: 66 BCE to 50

    CENOZOIC ERA

  • Quaternary
    2 BCE

    Quaternary

    -Development and diversification of animals
    -Glaciation in the northern hemisphere
  • Period: 2 to 50

    Quaternary