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Modeling Earth's History

By wintetey000
  • M: Formation of the Earth
    4600 BCE

    M: Formation of the Earth

  • Period: 4600 BCE to 3800 BCE

    Hadean Era

  • L: Rapid Growth of Continents
    4100 BCE

    L: Rapid Growth of Continents

  • Period: 3800 BCE to 2500 BCE

    Archaean Era

    Brown
  • 23: Life (bacteria-prokaryotes)
    3500 BCE

    23: Life (bacteria-prokaryotes)

  • 22: Eukaryotes
    2700 BCE

    22: Eukaryotes

  • Period: 2500 BCE to 570 BCE

    Proterozoic Era

    White
  • K: Free Oxygen Building Up in the Atmosphere (about .2%)
    2400 BCE

    K: Free Oxygen Building Up in the Atmosphere (about .2%)

  • 21: Multi-cellular Organisms (algae)
    2100 BCE

    21: Multi-cellular Organisms (algae)

  • 20: Soft-bodied Animals
    600 BCE

    20: Soft-bodied Animals

  • Period: 570 BCE to 245 BCE

    Paleozoic Era

    Orange
  • 19: Animals with hard shells
    540 BCE

    19: Animals with hard shells

  • 18: Vertebrates (jawless fish)
    500 BCE

    18: Vertebrates (jawless fish)

  • 17: Land Plants
    430 BCE

    17: Land Plants

  • 16: Land Animals (insects)
    400 BCE

    16: Land Animals (insects)

  • K: Free Oxygen Nears Present Levels (21%)
    380 BCE

    K: Free Oxygen Nears Present Levels (21%)

  • 15: Amphibians
    360 BCE

    15: Amphibians

  • I: Extensive Coal Deposits (North America and Europe)
    320 BCE

    I: Extensive Coal Deposits (North America and Europe)

  • 13: Reptiles
    310 BCE

    13: Reptiles

  • H: Formation of Supercontinent Pangea
    290 BCE

    H: Formation of Supercontinent Pangea

  • Period: 245 BCE to 208 BCE

    Triassic Period

    Light Blue
  • 12: Dinosaurs
    215 BCE

    12: Dinosaurs

  • 11: Mammals
    210 BCE

    11: Mammals

  • Period: 208 BCE to 146 BCE

    Jurassic Period

    Red
  • G: Breakup of Pangea and Formation of the Atlantic Ocean
    200 BCE

    G: Breakup of Pangea and Formation of the Atlantic Ocean

  • 10: Birds
    155 BCE

    10: Birds

  • Period: 146 BCE to 65 BCE

    Cretaceous Period

    Purple
  • 9: Flowering Plants
    130 BCE

    9: Flowering Plants

  • F: Formation of Rocky Mountains
    70 BCE

    F: Formation of Rocky Mountains

  • E: Cretaceous/Tertiary Meteor Impact
    65 BCE

    E: Cretaceous/Tertiary Meteor Impact

  • Period: 65 BCE to 2

    Cenozoic Era

  • 8: Primates
    55 BCE

    8: Primates

  • D: Formation of the Himalayan Mountains
    45 BCE

    D: Formation of the Himalayan Mountains

  • C: Separation of Antarctica and Australia
    45 BCE

    C: Separation of Antarctica and Australia

  • 7: Monkeys
    35 BCE

    7: Monkeys

  • 6: Hominids
    6 BCE

    6: Hominids

  • 5: "Lucy" (Australopithecus)
    3 BCE

    5: "Lucy" (Australopithecus)

  • B: Land Bridge Between North and South America
    2 BCE

    B: Land Bridge Between North and South America

  • 4: Manufactured Stone Tools
    2 BCE

    4: Manufactured Stone Tools

  • 3: Neanderthals
    1 BCE

    3: Neanderthals

  • A: Most Recent Ice Age
    1 CE

    A: Most Recent Ice Age

  • 2: Modern Humans
    1 CE

    2: Modern Humans

  • 1: Pictograms- Earliest Written Communication
    1 CE

    1: Pictograms- Earliest Written Communication