1134741 earth

Geological Timeline

By Npionte
  • 100

    Precambrian: Begin 4.6 billion years ago

    Precambrian: Begin 4.6 billion years ago
    The Earth is created
  • 150

    Precambrian: Events

    Precambrian: Events
    ~The Earth is created 4.3 billion years ago
    ~Precambrian represents the bulk of Earth's history before Cambrian
    ~Precambrian covers nearly 90% of Earth's history
    When the crust cooled, huge pieces of the crust began to move in different directions these pecies of crust are called tectonic plates
  • 200

    Precambrian: End 544 million years ago

    Precambrian: End 544 million years ago
    The Precambrien Era ends.
  • 200

    Paleozoic: Begining 544 million years ago

    Paleozoic: Begining 544 million years ago
    The begining of the Paleozoic Era.
  • 200

    Cambrian: Begining 544 million years ago

    Cambrian: Begining 544 million years ago
    The begining of Cambrian period.
  • 250

    Cambrian: Events

    Cambrian: Events
    ~The first geological time period of the Paleozoic Era
    ~It lasted about 53 million years
    ~Marked a dramatic burst of evolutionary changes in life on Earth, known as the "Cambrian Explosion”
  • 300

    Cambrian: End 505 million years ago

    Cambrian: End 505 million years ago
    The Cambrian period ends.
  • 300

    Ordovician:Beginning 505 million years ago

    Ordovician:Beginning 505 million years ago
    Ordovician period begins.
  • 350

    Ordovician: Events

    Ordovician: Events
    ~Fairly warm climate
    ~Life still primarily under water but more animal forms
    ~Groups of algae evolved along the edges of the water
    ~Fungi and algae left on the bare land worked together to create lichen
  • 400

    Ordovician: End 438 million years ago

    Ordovician: End 438 million years ago
    Ordovician period ends.
  • 400

    Silurian: Beginning 438 million years ago

    Silurian: Beginning 438 million years ago
    Silurian period begins.
  • 450

    Silurian Events

    Silurian Events
    ~The warm shallow seas made good conditions for marine life to grow
    ~The species that survived the mass extinction at the end of the Ordovician Period spread out and developed new variations of life
    ~One of the survivors were the nautiloids
  • 500

    Silurian: Ending 408 million years ago

    Silurian: Ending 408 million years ago
    Silurian period ends.
  • 500

    Devonian: Beginning 408 million years ago

    Devonian: Beginning 408 million years ago
    Devonian period begins.
  • 550

    Devonian: Events

    Devonian: Events
    ~Laying close to the equator made the climate of the Devonian was warm
    ~The warm temperatures made life on land very good for plants
    ~The Devonian is known as the Age of Fishes because it is famous for the species of fish that developed in Devonian seas
  • Mar 23, 600

    Devonian: Ending 360 million years ago

    Devonian: Ending 360 million years ago
    Devonian period ends.
  • Mar 23, 600

    Carboniferous: Beginning 360 million years ago

    Carboniferous: Beginning 360 million years ago
    The Carboniferous begins.
  • Mar 23, 650

    Carboniferous: Events

    Carboniferous: Events
    ~In the early Carboniferous Period, the Mississippian Epoch, much of North America was covered with warm and shallow seas
    ~In the middle through late Carboniferous Period, the land was rising out of the water
    ~The end of the Carboniferous Period is marked by global climate changes caused by glaciers that covered the South Pole
  • Mar 23, 700

    Carboniferous: Ending 286 million years ago

    Carboniferous: Ending 286 million years ago
    Carboniferous period ends.
  • Mar 23, 700

    Permian: Beginning 286 million years ago

    Permian: Beginning 286 million years ago
    Permian period begins.
  • Mar 23, 750

    Permian: Events

    Permian: Events
    ~The Permian Period was the final period of the Paleozoic Era
    ~On land, the giant swamp forests of the Carboniferous began to evaporate and dry out
    ~Fossils of the shallower coastal waters around Pangaea’s continental shelf show that reefs were large and diverse ecosystems with numerous sponge and coral species
  • Mar 23, 800

    Permian: Ending 245 million years ago

  • Mar 23, 800

    Triassic: Beginning 245 million years ago

    Triassic: Beginning 245 million years ago
    Triassic period begins.
  • Mar 23, 800

    Paleozoic: End 245 million years ago

    Paleozoic: End 245 million years ago
    Paleozoic period ends.
  • Mar 23, 800

    Mesozoic: Begin 245 million years ago

    Mesozoic: Begin 245 million years ago
    Mesozoic Era begins.
  • Mar 23, 850

    Triassic: Events

    Triassic: Events
    ~Many species that survived the Permian Extinction died out during the early part of the Triassic like Trilobites, bryozoans, and rugose
    ~A completely new invertebrate species that developed in the Triassic was the Belemnite
    ~The most important development was happening to the reptiles. These animals would dominate the land, sea and air throughout the Mesozoic Era
  • Mar 23, 900

    Triassic: Ending 208 million years ago

    Triassic: Ending 208 million years ago
    Triassic period ends.
  • Mar 23, 900

    Jurassic: Beginning 208 million years ago

    Jurassic: Beginning 208 million years ago
    Jurassic period begins.
  • Mar 23, 950

    Jurassic: Events

    Jurassic: Events
    ~During the Jurassic Period, the supercontinent Pangaea split apart into two peices
    ~The climate in the Jurassic Period was warm and stable
    ~Many types of animals and plants developed in the Jurassic Period
  • Mar 23, 1000

    Jurassic: Ending 144 million years ago

    Jurassic: Ending 144 million years ago
    Jurassic period ends.
  • Mar 23, 1000

    Cretaceous: Beginning 144 million years ago

    Cretaceous: Beginning 144 million years ago
    Cretaceous period begins.
  • Mar 23, 1050

    Cretaceous: Events

    Cretaceous: Events
    ~In Gondwana, South America and Africa broke apart because the ocean floor was spreading along a crack in the earth’s crust called a rift
    ~The rift between Africa and South America created a long chain of volcanic mountains underwater which grew as the Atlantic Ocean
    ~Animal life continued to develop much as it had in the Jurassic as new species of dinosaurs became important
  • Mar 23, 1100

    Cretaceous: Ending 66.4 million years ago

    Cretaceous: Ending 66.4 million years ago
    Cretaceous period ends.
  • Mar 23, 1100

    Tertiary: Beginning 66.4 million years ago

    Tertiary: Beginning 66.4 million years ago
    Tertiary period begins.
  • Mar 23, 1100

    Mesozoic: End 66.4 million years ago

    Mesozoic: End 66.4 million years ago
    Mesozoic Era ends.
  • Mar 23, 1100

    Cenozoic: Begin 66.4 million years ago

    Cenozoic: Begin 66.4 million years ago
    Cenozoic Era begins.
  • Mar 23, 1150

    Tertiary: Events

    Tertiary: Events
    ~The beginning of this period was very warm and moist compared to today’s climate as much of the earth was tropical or sub-tropical and Palm trees grew as far north as Greenland
    ~During the Pliocene Period the first hominids appeared these were our human ancestors
    ~Birds did almost as well as mammals during the Tertiary Period and many of the birds we know today were present
  • Mar 23, 1200

    Tertiary: Ending 1.6 million years ago

    Tertiary: Ending 1.6 million years ago
    Tertiary Era ends.
  • Mar 23, 1200

    Quaternary: Beginning 1.6 million years ago

    Quaternary: Beginning 1.6 million years ago
    Quaternary period begins.
  • Mar 23, 1250

    Quaternary: Events

    Quaternary: Events
    ~Generally temperatures were cooler everywhere on earth during this time period
    ~During the Quaternary period the positions of the continents were very much the same as they are today
    For us, the most important development of the Quaternary ~Period is the development of the hominids or Humans