History of the Earth

By Diegosanchezmansilla
  • Period: 1 CE to 5

    The Hadean Eon (4550-4000MYa)

    -Meteorite impacts
    -The moon was closer to the Earth
    -Gases formed the atmosphere
    -Water vapour condensed to create the oceans
    -Lava was more liquid
    -Earth's internal heat released magma
  • Period: 5 to 15

    Archaean eon(4000-2500MYA)

    -Aparition of microcontinents
    -First Prokariotic organism: Bacteria and Archaea
    -They made nutrition by PHOTOSHYNTHESIS
  • Period: 15 to 25

    Proterozoic eon (2500-538MYA)

    -Snowball Earth (global glaciation)
    -Supercontinent Rodinia (tectonic plate)
    -Aparition of eukaryotic cells
    -First soft-bodied invertebrate (edicarian fauna)
  • Period: 25 to 35

    Phanerozoic eon

  • Period: 25 to 29

    The paleozoic (538-252MYA)

    BIOLOGY:
    The age of invertebrates, fish and amphibians begin.
    During the age of invertebrates, animals without spinal columns evolved.
    GEOLOGY:
    The beginning of the Paleozoic Era witnessed the breakup of the supercontinent of Pannotia and ended while the supercontinent Pangaea was assembling.
    The breakup of Pannotia was followed by the assembly of the continent of Gondwana, 510 million years ago.
    It ended with a cataclysm known as "The Great Dying",
    most severe Phanerozoic mass extinction.
  • 29

    Triassic

    Triassic
    The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are major extinction events.
    BIOLOGY:
    Main animals were reptiles such as dinosaurs and little amphibians and mammals.
    Plants were flat trees and algae, and all the planet was fully covered, a lot of oxygen.
    GEOLOGY:
    During the Triassic,Earth's was concentrated into a single supercontinent, Pangaea.
    The Triassic Period ended with a mass extinction, which was particularly severe in the oceans
  • Period: 29 to 32

    The Mesozoic (252-66MYA)

    The Mesozoic Era is the penultimate era of Earth's geological history, comprising the Triassic, Jurassic and Cretaceous Periods
  • 30

    Jurassic

    Jurassic
    The Jurassic constitutes the middle period of the Mesozoic Era and is named after the Jura Mountains.
    BIOLOGY:
    Dinosaurs ruled, with bigger and more complex species, but the biodiversity increased.
    Plants such as Conifers and Ginkgoales were the most common.
    GEOLOGY:
    The period started with Pangea, which separed during this period.
  • 31

    Cretaceous

    Cretaceous
    It is the third and final period of the Mesozoic Era, as well as the longest.
    BIOLOGY:
    Dinosaurs great age. Aquatic fish and mammals evolved more, with great diversity.
    Plants like ferns and long trees were the norma.
    GEOLOGY:
    Due to the high sea level, there was extensive space for such sedimentation. Young age and great thickness of the system, Cretaceous rocks are worldwide.
    Actual continents started to take form.
    The impact of a meteorite is today widely accepted as the extinction event.
  • Period: 32 to 35

    The Cenozoic(66-0MYA)

    It's Earth's current geological era, representing the last 66 million years of Earth's history.
    It is characterized by the dominance of mammals, birds, and angiosperms. It is the latest of three geological eras, preceded by the Mesozoic and Paleozoic. The Cenozoic started with the Cretaceous event, when many species, including the non-avian dinosaurs, became extinct due to the impact of a large asteroid or other celestial body, the Chicxulub impactor.