Timetoast

  • 541 BCE

    Cambrian

    Cambrian
    many marine invertebrates with external skeleton (arthropods)
  • Period: 541 BCE to 252 BCE

    Paleozoic era

    The Paleozoic occurs after the disintegration of the supercontinent Pannotia and ends with the formation of the supercontinent Pangea. During most of the era the earth's surface is divided into a relatively small number of continents.This era is divided into six periods: Cambrian, Orodovician, Silurian, Debonian, Carboniferous and Permian In this era mainly lived trilobite, fern and lepidodendron, the first vertebrates, cartilaginous fish, amphibians and reptiles appear.
  • Period: 541 BCE to 485 BCE

    Cambrian Period

  • 485 BCE

    Ordovician

    Ordovician
    Rodinia breaks up.
  • Period: 485 BCE to 444 BCE

    Ordovician Period

  • 444 BCE

    SIlurian

    SIlurian
    First land plants
  • Period: 444 BCE to 419 BCE

    Silurian Period

  • 419 BCE

    Devonian

    Devonian
    First Amphibians and fish diversify
  • Period: 419 BCE to 359 BCE

    Devonian Period

  • 359 BCE

    Carboniferous

    Carboniferous
    First reptiles, Pangaea forms
  • Period: 359 BCE to 299 BCE

    Carboniferous Period

  • 299 BCE

    Permian

    Permian
    reptiles diversify
  • Period: 299 BCE to 252 BCE

    Permian Period

  • 252 BCE

    Triassic

    Triassic
    First dinosaurs and first mammals
  • Period: 252 BCE to 201 BCE

    Triassic Period

  • Period: 251 BCE to 66 BCE

    Mesozoic Era

    The Mesozoic era is known as the age of the dinosaurs. During this era, Pangea was fragmented and the continents were moving towards their current position. The climate was quite warm and this helped the evolution and diversification of new species. This era is divided into three periods, Cretaceous, Jurassic and Triassic.
  • 201 BCE

    Jurassic

    Jurassic
    Pangea begins to break up and is first birds are create
  • Period: 201 BCE to 145 BCE

    Jurassic Period

  • 145 BCE

    Cretaceous

    Cretaceous
    First plants with flowers and extinction of dinosaurs and ammonites
  • Period: 145 BCE to 66 BCE

    Cretaceous Period

  • 66 BCE

    Tertiary

    Tertiary
    Development and diversification of mammals, first humans
  • Period: 66 BCE to 2 BCE

    Tertiary Period

  • Period: 66 BCE to 50

    Cenozoic era

    The Cenozoic era is known as the era of mammals, since these arose after the extinction of the dinosaurs. During this era, the continents were positioned as we know them today. The weather has been a long-term cooling period. In this era, species began to evolve into what they are today, including humans. This era is divided into two periods, Tertiary and Quatermary.
  • 2 BCE

    Quaternary

    Quaternary
    Glaciation in the Northern Hemisphere
  • Period: 2 BCE to 50

    Quaternary Period