Juana Geologic Timescale

Timeline created by juanaxlopez
  • 4,500 BCE

    Formation of Earth

    Formation of Earth
    Comets were forming Earth, Earth was molten.
  • 4,400 BCE

    Earth starts to cool & solidify

    Earth starts to cool & solidify
    Earth begins to cool and solidify, water is beginning to form on surface.
  • 4,000 BCE

    Water World

    Water World
    Earth is covered 90% in water, ocean is green
  • 3,400 BCE

    Granite Planet

    Granite Planet
    Oceans dominate Earth, continents begin to form, granite appears
  • 1,500 BCE

    Blue Planet

    Blue Planet
    Planet is blue, continents are moving
  • 1,000 BCE

    Rodinia

    Rodinia
    Rodinia is formed
  • -700 BCE

    Snowball Earth

    Snowball Earth
    Earth is covered in ice
  • -650 BCE

    Eruptions

    Eruptions
    Volcanic eruptions are breaking Rodinia apart
  • -550 BCE

    Cambrian

    Cambrian
    Ice melts, Rodinia is broken part, Ozone begins to form
  • -485 BCE

    Ordovician

    Ordovician
    Earth was warm, massives glaciers form, sea levels drop.
  • -443 BCE

    Silurian

    Silurian
    Warm and stable climate, 600+ species
  • -400 BCE

    Devonian

    Devonian
    Ozone fully formed, very warm climate, high sea levels
  • -358 BCE

    Carboniferous

    Carboniferous
    Animals able to come onto land, Pangaea forming tropical swamps
  • -298 BCE

    Permian

    Permian
    Pangaea is fully formed
  • -251 BCE

    Mass Extinction

    Mass Extinction
    Volcanic eruptions wipe out 95% of species
  • -251 BCE

    Triassic

    Triassic
    Dinosaurs evolve
  • -201 BCE

    Jurassic

    Jurassic
    Dinosaurs dominate Earth
  • -145 BCE

    Cretaceous

    Cretaceous
    Pangaea is broken apart, diamonds come to surface, dinosaurs rule
  • -65 BCE

    Mass Extinction 2

    Mass Extinction 2
    Dinosaurs are wiped out by major meteor as well as 75% of species on Earth
  • -65 BCE

    Tertiary

    Tertiary
    Mammals evolve, flowering plants, moist climate
  • -6 BCE

    Grand Canyon

    Grand Canyon
    Grand Canyon fully forms
  • -2 BCE

    Quaternary

    Quaternary
    2.6 mya to present day, humans dominate, climate change