Geological Time

By IsayVíctor
  • Arthropods
    541 BCE

    Arthropods

    Many marine invertebrates with external squeletons
  • Period: 541 BCE to 252 BCE

    Palaeozoic Era

    The Paleozoic is characterized by the great development and reproduction that species with shell or exoskeleton had.
  • Period: 541 BCE to 485 BCE

    Cambrian

  • Algaes and fish changes
    485 BCE

    Algaes and fish changes

    Widespread marine algaes and fish without jaws
  • Period: 485 BCE to 444 BCE

    Ordovician

  • First land plants
    444 BCE

    First land plants

    Appearing of the first plants out of the water
  • Period: 444 BCE to 419 BCE

    Silurian

  • Anphibians
    419 BCE

    Anphibians

    Anphibians appeared with more diversity of fishes
  • Period: 419 BCE to 359 BCE

    Devonian

  • Reptiles and giant fern forests
    359 BCE

    Reptiles and giant fern forests

    Reptiles appeared and there are bigger plants
  • Period: 359 BCE to 299 BCE

    Carboniferous

  • More reptiles
    299 BCE

    More reptiles

    A really big diversity of reptiles
  • Period: 299 BCE to 252 BCE

    Permian

  • Dinosaurs and mammals
    252 BCE

    Dinosaurs and mammals

    First dinosaurs and mammals appeared
  • Period: 252 BCE to 66 BCE

    Mesozoic Era

    The Mesozoic Era is known as the age of the dinosaurs because it was during this period that these gigantic animals populated The Earth.
  • Period: 252 BCE to 201 BCE

    Triassic

  • First flying and aquatic reptiles
    201 BCE

    First flying and aquatic reptiles

    Gymnosperm plants dominate the Earth's surface, first birds appeared and even more dinosaurs diversity (Aquatic and flying new species)
  • Period: 201 BCE to 145 BCE

    Jurassic

  • Dinosaurs extinction
    145 BCE

    Dinosaurs extinction

    First plants with flowers appeared and dinosaurs and ammonites have become extincted
  • Period: 145 BCE to 66 BCE

    Cretaceous

  • Diversification of mammals
    66 BCE

    Diversification of mammals

    Mammal species could survive and evolve
  • Period: 66 BCE to 50

    Cenozoic Era

    The Cenozoic era is the geological era that began about 66 million years ago and extends to the present day, the third and last era of the Phanerozoic eon and follows the Mesozoic era.
  • Period: 66 BCE to 2 BCE

    Tertiary

  • Human beings
    2 BCE

    Human beings

    Human beings appeared and there was a glaciation in the Northern Hemisphere
  • Period: 2 BCE to 50

    Quaternary