GEOLOGICAL TIME

By martinagutierrez
  • Period: 541 BCE to 252 BCE

    PALEOZOIC ERA

    Great development and reproduction of species with shell or exoskeleton
  • Period: 541 BCE to 485 BCE

    CAMBRIAN

  • 510 BCE

    CAMBRIAN EXPLOSION

    CAMBRIAN EXPLOSION
    Diversification of organisms
  • Period: 485 BCE to 444 BCE

    ORDOVICIAN

  • 460 BCE

    CONTINENTS WERE MADE

    CONTINENTS WERE MADE
    Most of the world’s land masses came together to create the Gondwana supercontinent. Gondwana moved south throughout the period, and finally settled in the South Pole.
  • Period: 444 BCE to 419 BCE

    SILURIAN

  • 430 BCE

    EXTINCTION OF ORDOVICIAN-SILURIAN

    EXTINCTION OF ORDOVICIAN-SILURIAN
    Extinction was global during this period, eliminating between 49% and 60% of marine genera and almost 85% of marine species.
  • Period: 419 BCE to 359 BCE

    DEVONIAN

  • 390 BCE

    MASS EXTINTION OF THE DEVONIAN

    MASS EXTINTION OF THE DEVONIAN
    Extinction events: Kellwasser event and Hangenberg event.
  • Period: 359 BCE to 299 BCE

    CARBONIFEROUS

  • 330 BCE

    COLLAPSE OF THE CARBONIFEROUS RAINFOREST

    COLLAPSE OF THE CARBONIFEROUS RAINFOREST
    Altered the vast coal forests that covered the equatorial region of Euramerica Collapse of the carboniferous rainforest.
  • Period: 299 BCE to 252 BCE

    PERMIAN

  • 252 BCE

    MASS EXTINCTION OF THE PERMIAN-TRIASSIC

    MASS EXTINCTION OF THE PERMIAN-TRIASSIC
    95% of all life on Earth disappeared.
  • Period: 252 BCE to 66 BCE

    MESOZOIC ERA

    Is reconoized as the age of dinosaurs because they appeared in this time
  • Period: 252 BCE to 201 BCE

    TRIASSIC

  • 225 BCE

    ANIMAL EVOLUTION IN TRIASIC PERIOD

    ANIMAL EVOLUTION IN TRIASIC PERIOD
    Dinosaurs and mammals evolved, the first observation of mammals occurred in the late Triassic period.
  • Period: 201 BCE to 145 BCE

    JURASSIC

  • 170 BCE

    FRACTURE OF THE SUPERCONTINENT PANGEA

    FRACTURE OF THE SUPERCONTINENT PANGEA
    A slow but steady rifting process occurred.
  • Period: 145 BCE to 66 BCE

    CRETACEOUS

  • 100 BCE

    MASS EXTINCTION OF ANIMAL AND PLANT SPECIES

    MASS EXTINCTION OF ANIMAL AND PLANT SPECIES
    All dinosaurs became extinct, most of the smaller terrestrial reptiles survived. Possible causes: weather events, meteorite impact or extraterrestrial causes.
  • Period: 66 BCE to 2 BCE

    CENOZOIC ERA

    Dinosaurs disappeared and continents separades
  • Period: 66 BCE to 2 BCE

    TERTIARY

  • 30 BCE

    FIRST APES OR PRIMATE-LIKE SPECIES

    FIRST APES OR PRIMATE-LIKE SPECIES
    Several families appeared in Europe and North Africa, in North America and Europe and North America, Europe, Egypt and Asia.
  • 15 BCE

    EVOLUTION OF HOMINIDS

    EVOLUTION OF HOMINIDS
    They evolved and expanded in Africa. Fossils have been discovered in Eastern and Southern Africa.
  • Period: 2 BCE to 20

    QUATERRNARY