History of Life - P1 - G4

By mrsshaw
  • Formation of Earth

    4.6 Billion Years ago
  • Intense Volcanic Activity & Formation of Earth's Crust

    4.5 Billion Years Ago
  • Cooling, Meteorite Bombardment & Great Electrical Storms

    4.2 Billion Years Ago
  • Oceans Formed

    4 Billion Years Ago
  • Formation of Organic Molecules

    3.9 Billion Years Ago
  • Period: to

    Precambrian Era

  • Oldest Known Rocks & Oldest Known Chemical Evidence of Life

    3.8 BYA
  • Oldest Known Rocks & Oldest Known Chemical Evidence of Life

    3.8BYA
  • Oldest Known Rocks and Oldest Known Chemical Evidence of life

  • No Free Oxygen in the Atmosphere

    3.7 BYA
  • No Free Oxygen in the Atmosphere

    3.7BYA
  • No Free Oxygen in the Atmosphere

  • Complex Amino Acids Formed

    3.6 BYA
  • Complex Amino Acids Formed

    3.6BYA
  • Complex Amino Acids Formed

  • Oldest Known Evidence of Life--Archea-like Protists

    3.5 BYA
  • Oldest Known Evidence of Life--Archea-like Protists

    3.5BYA
  • Oldest Known Evidence of Life--Archea-like Protists

  • First Evidence of Land Continents

    3.4 BYA
  • First Evidence of Land Continents

    3.4BYA
  • First Evidence of Land Continents

  • Abundant Archea-like Organisms--Prokayotes

    3.2BYA
  • Abundant Archea-like Organisms--Prokayotes

  • Coral, Jellyfish, Sponges, and Worms Present in the Sea (Invertibrates)

    1 Billion Years Ago
  • Cambrian Explosion of Marine Organisms--Trilobites

    570 Million Years Ago
  • First Blue-Green Algae--Stromatolites

    3BYA
  • Oldest Known Chemical Evidence of Eukaryotes

    2.7BYA
  • Ozone Layer Forms

    2BYA
  • Period: to

    Precambrian Era

  • Abundant Bacteria

    1.8 Billion Years Ago
  • Oldest Known Fossils of Eukaryotes (Protists)

    1.7 Billion Years Ago
  • Oldest Known Fossils of Eucaryotes

  • Formation of Early Super Contintent--Pangaea I

    1.25 Billion Years Ago
  • Formation of Early Super Continent-Pangea I

  • First Multicelled Animals--Jellyfish

    1.2 Billion Years Ago
  • First Multi-Celled Animals (Jellyfish)

  • Central U.S. in an Ocean (off and on)

    1.1 Billion Years Ago
  • Central US in an Ocean (off and on)

  • Coral, Jellyfish, Sponges, and Worms present in the sea. (inverterbrates)

  • Breakup of Early Super Continent

    580 Million Years Ago
  • Period: to

    Paleozic Era

  • Oldest Known Fish--Vertebrates

  • Oldest known land plants & oldest known jared fish

  • Fungi and modern algae appear

  • Oxygen Reaches 20%--Present day level

  • Oldest known insects

  • First amphibian

  • Oldest Known Forest with Tall Trees

    360 MYA
  • Oldest Known Reptiles

    350 MYA
  • Oldest Known Reptiles

    350 million years ago
  • Giant Ferns and First Seed Plants

    310 MYA
  • Giant ferns and first seed plants

    310 million years ago
  • Coal Age--Warm, Swampy, Primitive Land Plants

    305 MYA
  • Coal Age--Warm, Swampy, Primitive Land Plants

    305 million years ago
  • Super Contintent Panagea II Formed

    280 MYA
  • Super Contintent Panagea II Formed

    280 million years ago
  • Mass Extinction of Sea Creatures--Trilobites

    250 MYA
  • Mass Extinction of Sea Creatures--Trilobites

    250 million years go
  • First Dinosaurs and Oldest Known Egg-Laying Mammals

    220 MYA
  • Continents Separate

    210 MYA
  • First Birds

    180 MYA
  • Oldest Known Flowering Plants

    Oldest Known Flowering Plants
    It has been 130 MYA since this has happened
  • Oldest Known Flowering Plants

    130 MYA
  • Oldest Known Primate

    60 MYA
  • Oldest Known Primates

    60 million years ago
  • India Collieds with Asia Producing the Himalayes

    50 MYA
  • India collides with Asia producing the Himalayas

    50 Million years ago
  • First Monkey- like Primates

    35 MYA
  • First Monkey Like Primates

    35 Million years ago
  • Worldwide Glaciations

    1.6 MYA
  • Early Humans

    1.5 MYA
  • Worldwide Glaciation

    1.6 Million years ago
  • Early Humans

    1.5 Million Years Ago