Planeta tierra

EVOLUTION OF EARTH

By judiithh05
  • 2011 BCE

    11 ya (2011)

    11 ya (2011)
    The western black rhinoceros is declared extinct.
  • 1688 BCE

    334 ya (1688)

    334 ya (1688)
    The dodo goes extinct.
  • 350 BCE

    350 ka

    350 ka
    Evolution of Neanderthals.
  • 250 BCE

    250 ka

    250 ka
    Anatomically modern humans appear in Africa. Around 50,000 years before the present they began to colonize the other continents, replacing Neanderthals in Europe and Asia.
  • 1 CE

    1,2 Ma

    1,2 Ma
    Evolution of Homo antecessor.
  • 225

    225 Ma

    225 Ma
    First dinosaurs and first mammals.
  • 340

    340 Ma

    340 Ma
    Amphibian diversification.
  • 363

    363 Ma

    363 Ma
    At the beginning of the Carboniferous Period, the Earth began to resemble its present state. Insects roamed the land and would soon take to the skies; sharks swam the oceans as top predators; and vegetation covered the land, with seed-bearing plants and forests soon to flourish.
  • 410

    410 Ma

    410 Ma
    First signs of teeth in fish.
  • 485

    485 Ma

    485 Ma
    First vertebrates with real bones (jawless fish).
  • 511

    511 Ma

    511 Ma
    The first crustaceans.
  • 530

    530 Ma

    530 Ma
    The earliest known footprints on earth.
  • 535

    535 Ma

    535 Ma
    Great diversification of living beings in the oceans: arthropods, chordates, echinoderms, molluscs, brachiopods, foraminifera and radiolarians, among others…
  • 600

    600 Ma

    600 Ma
    The accumulation of atmospheric oxygen allows the formation of an ozone layer. Advances in terrestrial life would probably have required other chemicals to attenuate ultraviolet radiation sufficiently to allow colonization of the land.
  • 750

    750 Ma

    750 Ma
    Beginning of animal evolution.
  • 1200

    1200 Ma

    1200 Ma
    Sexual reproduction appears for the first time in the fossil record; it may have increased the rate of evolution.
  • 1300

    1300 Ma

    1300 Ma
    First terrestrial fungi.

  • 1850 Ma

    1850 Ma
    Eukaryotic cells appear. Eukaryotes contain organelles (elementary constituent part of the cell) membrane-bound with diverse functions, probably derived from prokaryotes that envelop each other through phagocytosis). The appearance of red beds indicates that an oxidizing atmosphere had been produced.

  • 3500 Ma

    3500 Ma
    Lifespan of the last universal common ancestor (LUCA). Division between bacteria and archaea occurs.
    Bacteria develop primitive forms of photosynthesis that initially produced no oxygen. These organisms generated adenosine triphosphate (ATP), a mechanism that is still used in virtually all organisms, unchanged, to this day.

  • 3900–2500 Ma

    3900–2500 Ma
    Prokaryote-like cells appear. These early organisms use carbon dioxide as a carbon source and oxidize inorganic materials to extract energy.

  • 4280 Ma

    4280 Ma
    Earliest possible appearance of life on Earth.

  • 4400 Ma

    4400 Ma
    First appearance of liquid water on Earth.

  • 4500 Ma

    4500 Ma
    Following the hypothesized giant impact of planet Earth and the hypothetical planet Theia, the Moon originated, sending a large number of small moons in orbit around the young Earth that eventually coalesced to form the Moon. The gravitational pull of the new Moon stabilized the Earth's axis of rotation.