Geology Timeline

By leechl
  • 500 BCE

    Ordovician

    Ordovician
    The second of six periods of the Paleozoic Era. The Ordovician spans 41.2 million years from the end of the Cambrian Period
  • 299 BCE

    Paleozoic Era

    Paleozoic Era
    At the beginning of the Paleozoic was the first time that multi cellular life forms flourished on Earth.
  • 280 BCE

    Permian

    Permian
    The Permian witnessed the diversification of the early amniotes into the ancestral groups of the mammals, turtles, lepidosaurs and archosaurs.
  • 225 BCE

    Triassic

    Triassic
    Is a geologic period and system which spans 50.9 million years from the end of the Permian Period 252.17 million years ago (Mya), to the beginning of the Jurassic Period 201.3 Mya. The Triassic is the first period of the Mesozoic Era.
  • 65

    Teritary

    Teritary
    The first period of the Cenozoic Era, which began 65 Ma ago and lasted approximately 63.2 Ma
  • 136

    Cretaceous

    Cretaceous
    The Cretaceous Period was the last and longest segment of the Mesozoic Era. It lasted approximately 79 million years
  • 195

    Jurrasic

    Jurrasic
    The Jurassic constitutes the middle period of the Mesozoic Era, also known as the Age of Reptiles. The start of the period is marked by the major Triassic–Jurassic extinction event.
  • 345

    Carboniferous

    Carboniferous
    Is famous for its vast swamp forests, such as the one depicted here.
  • 395

    Devonian

    Devonian
    The Devonian is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, 419.2 million years ago
  • 435

    Sulurian

    Sulurian
    The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago
  • 570

    Cambrian

    Cambrian
    The first time that multi- cellular life forms flourished on Earth.