JJ Graham Geologic Timeline

By Jnova
  • 595 BCE

    Quaternary period

    Quaternary period
    Lyell in the 1830s, the Quaternary Period was divided into two epochs, the Pleistocene and the Holocene, with the Pleistocene (and therefore the Quaternary) understood to have begun some 1.8 million years ago
  • 570 BCE

    Cambrian Period- 570 - 500 MYA

    Cambrian Period- 570 - 500 MYA
    Trilobites were the dominant species during the Cambrian Period, 540 to 490 million years ago.
  • 544 BCE

    Carboniferous period

    Carboniferous period
    Famous for its vast swamp forests, lasted from about 359.2 to 299 million years ago
  • 525 BCE

    Tertiary period

    Tertiary period
    lasting from approximately 66 million to 2.6 million years ago. It is the traditional name for the first of two periods in the Cenozoic Era (66 million years ago to the present)
  • 520 BCE

    Devonian period

    Devonian period
    Paleozoic, spanning 60 million years from the end of the Silurian, 419.2 million years ago
  • 500 BCE

    Silurian period

    Silurian period
    The Silurian Period occurred from 443 million to 416 million years ago.
  • 495 BCE

    Cretaceous period

    Cretaceous period
    The Cretaceous began 145.0 million years ago and ended 66 million years ago; it followed the Jurassic Period and was succeeded by the Paleogene Period
  • 488 BCE

    Ordovician period

    Ordovician period
    Area north of the tropics was almost entirely ocean, and most of the world's land was collected into the southern supercontinent Gondwana
  • 475 BCE

    Triassic period

    Triassic period
    Mesozoic Era and occurred between 251 million and 199 million years ago.
  • 440 BCE

    Permian period

    Permian period
    Which ended in the largest mass extinction the Earth has ever known, The emerging supercontinent of Pangaea
  • 510

    Jurassic period

    Jurassic period
    It occurred from 199.6 to 145.5 million years ago, following the Triassic Period and preceding the Cretaceous Period.