Línea de tiempo de la historia de la Tierra

By Pablo1949
  • Period: 4600 BCE to 540 BCE

    Precambrian

    • Guide fossils: estromatolites.
    • Geological events: lots of volcanic activity, oceans formation, first sedimentary rocks and formation of two supercontinents.
    • Climate events: There was a global glaciation and a primitive atmosphere was created became to an oxidizing atmosphere.
  • Life appears
    4500 BCE

    Life appears

    Appears cyanobacteria , eukaryotic cells, ediacaran fauna and also prokaryotic cells and bacterias.
  • Period: 540 BCE to 250 BCE

    Paleozoic

    • Guide fossils: trilobites.
    • Geological events: large mountain ranges appears, There was also significant volcanic activity and Pangaea was formed.
    • Climate events: bigs glaciations.
  • Invertebrates but strong
    520 BCE

    Invertebrates but strong

    Arthropods and cephalopods appeared during the Cambrian period.
  • Now we have bones!
    510 BCE

    Now we have bones!

    In the Ordovician Period appeared the first vertebrates, gymnosperm plants (without flowers), and reefs.
  • 1st mass extinction
    438 BCE

    1st mass extinction

    In the Ordovician period.
  • Also with jaw!
    438 BCE

    Also with jaw!

    In the Silurian period appears jawed fishes, eureptids, and the first plants and arthropods on land.
  • The domain of the fishes
    410 BCE

    The domain of the fishes

    In the Devonian period it was the fish age, and there were many tetrapods and insects.
  • 2nd mass extinction
    360 BCE

    2nd mass extinction

    In the Devonian period.
  • Now the forests have the power
    355 BCE

    Now the forests have the power

    In the Carboniferous was the period age of the forests. Amphibians and amniotes appear.
  • Many crawl, but they don't dominate.
    275 BCE

    Many crawl, but they don't dominate.

    In the Permian period there was a lot of sauropsids and synapsids.
  • 3rd mass extinction
    250 BCE

    3rd mass extinction

    It was the deadliest, 90% of living beings became extinct.
  • Period: 245 BCE to 66 BCE

    Mesozoic

    • Guide fossils: Ammonites and Belemnites.
    • Geological events: fracturing of Pangea, possible meteorite impact and a lot of geological activity.
    • Climate events: The weather softens and a warm period begins.
  • Now the reptiles really domain.
    240 BCE

    Now the reptiles really domain.

    In the Triassic period was the age of reptiles, the first dinosaurs and mammals appeared.
  • Just so you know, we can fly
    205 BCE

    Just so you know, we can fly

    In the jurassic period the first birds and the first angiosperms (flowering plants) appeared.
  • 4th mass extinction
    144 BCE

    4th mass extinction

    In the Jurassic period.
  • The most feared
    140 BCE

    The most feared

    In the Cretaceous period more types of dinosaurs appeared, such as the tyrannosaurus or the mosasaur.
  • 5th mass extinction
    66 BCE

    5th mass extinction

    In the Cretaceous period.
  • Period: 66 BCE to

    Cenozoic

    • Guide fossils: Nummulites
    • Geological events: The present continents are formed and there were other formations as well, such as the Canary Islands.
    • Climate events: The climate is getting warmer, although there have been four glaciations.
  • Our ancestors.
    60 BCE

    Our ancestors.

    In the Palaeogene period primates appeared, and it was the age of mammals.
  • The most feared Part II.
    24 BCE

    The most feared Part II.

    In the Neogene period mammoths, megalodons, and the first hominids appear.
  • Finally, we appear
    2 BCE

    Finally, we appear

    Our race appears, Homo sapiens.