Geologic Timescale

By giambash
  • 4400 BCE

    4.4 BYA

    Water was forming, Crystals from this time are still here in the Present day, Carbon dioxide.
  • 1500 BCE

    1.5 BYA

    Almost 3 MYO, with blue skies, and the continents were starting to move.
  • 1200 BCE

    1.2 BYA

    Stromatolite got energy from the sun while in shallow areas of the ocean, the atmosphere was filling with oxygen, Photosynthesis.
  • 1000 BCE

    1 BYA

    Over majority of the earth was ocean, there was enough pressure to crush a human, and the continents were beginning to form.
  • Period: 65 to 26

    Cenozoic Era

    65 MYA: Meteor that's 6 miles in diameter hits earth, lava flows that covered america; smoke blocked out the sun, K-T extinction.
    2.6 MYA: Early man, northern glaciation.
  • 100

    1.0 MYA

    Rodinia.
  • Period: 251 to 65

    Mesozoic Era

    251 MYA: First dinosaurs. 201 MYA: First birds, and mammals. 145 MYA - 65 MYA: Meteor that's 6 miles in diameter hits earth, lava flows that covered america; smoke blocked out the sun, K-T extinction.
  • 400

    4 MYA

    Thunderstorms for millions of years.
  • Period: 550 to 251

    Paleozoic Era

    541 MYA: First abundant record of marine life: trilobites dominant.
    485 MYA: First fishes, w/ invertebrates dominant. 443 MYA: First terrestrial plants and animals. 419 MYA: First amphibians; ammonites; abundant amount of fish. 358 MYA: Sharks, and lots of large trees and sees ferns, First reptiles. 298 MYA - 251 MYA: Mass extinction of most marine animals including trilobites, southern glaciation.
  • 650

    650 MYA

    Marine life was almost wiped out, and volcanic eruptions were breaking Rodinia.
  • 700

    700 MYA

    Ice Age, Algae and bacteria were trapped under ice.