GEOLOGICAL TIME

By Ainhoa12
  • 4534 BCE

    The first mammals, which evolved from mammalian reptiles

    The first mammals, which evolved from mammalian reptiles
  • 541 BCE

    Produced the most intense burst of life ever known ...

    Produced the most intense burst of life ever known ...
  • Period: 541 BCE to 485 BCE

    Cambrian

    Is the first geological period of the Paleozoic Era. The end of the Cambrian Period is marked by evidence in the fossil record of a mass extinction event some 490 million years ago.
  • Period: 541 BCE to 4500 BCE

    pre-cambrian

    It is the first and longest stage in the history of the Earth This supereon began when the Earth was formed. It lasted approximately 4027 million years.
  • Period: 541 BCE to 252 BCE

    PALAEOZOIC ERA

    is a division of the geological time scale that belongs to the Phanerozoic eon, with the category of era (as time) and erathem (as a set of rocks). It began 541 million ago years and ended about 252 million years ago.
  • 485 BCE

    Sea level rise and proliferation of life in marine ecosystems...

    Sea level rise and proliferation of life in marine ecosystems...
  • 444 BCE

    It had an intense geological activity,

    It had an intense geological activity,
  • 419 BCE

    Devolian

    Devolian
    The first amphibians emerge. Several lines of terrestrial arthropods also proliferate
  • 359 BCE

    Huge deposits of coal found in Western Europe.

    Huge deposits of coal found in Western Europe.
  • 299 BCE

    There was a shrinkage of the swamps. Large numbers of tree ferns and amphibians

    There was a shrinkage of the swamps. Large numbers of tree ferns and amphibians
  • Period: 252 BCE to 66 BCE

    MESOZOIC ERA

    known biologically as the age of dinosaurs or botanically as the age of cycads.
  • 201 BCE

    Characterized by the hegemony of the great dinosaurs

    Characterized by the hegemony of the great dinosaurs
  • Period: 201 BCE to 145 BCE

    Jurassic

    The Jurassic is a geologic period and stratigraphic system that spanned from the end of the Triassic Period 201.3 million years ago .
  • 145 BCE

    extinction of the dinosaurs

    extinction of the dinosaurs
  • Period: 145 BCE to 66 BCE

    Cretaceous

    It began 145 million years ago and ended 66 million years ago.2 With a duration of about 79 million years, it is the longest Phanerozoic period, and is even longer than the entire Cenozoic Era.
  • Period: 2 BCE to 10

    Quaternary

    The quaternary period began 2.6 million years ago and extends into the present. Climate change and the developments it spurs carry the narrative of the Quaternary.
  • Period: 66 to 2

    Tertiary

    it is the geological era that began about 66 millon years ago and that extends to the present dat , it is the thitd and last era of the Phanerozocic eon and follows the Mesozoic era .
  • Period: 66 to 2

    CENOZOIC ERA

    It is the geological era that began about 66 million years ago and continues to the present day. It is the third and last era of the Phanerozoic eon and follows the Mesozoic era. Its name comes from the Greek language and means "new animals".
  • Period: 252 to 201

    Triassic

    In the case of this period, both the beginning and the end are marked by important extinction events: the Permian-Triassic mass extinction and the Triassic-Jurassic one.
  • Period: 299 to 252

    Permian

    The Permian period, which ended with the largest mass extinction Earth has ever known, began about 299 million years ago.
  • Period: 359 to 299

    Carbonifereous

    ​ The Carboniferous period, part of the late Paleozoic era, takes its name from large underground coal deposits that date to it.and was coined by geologists William Conybeare and William Phillips in 1822, based on a study from British rocks.
  • Period: 419 to 359

    Devonian

    During the Devonian, about 365 million years ago, the first amphibians emerged. At the end of the period there was the mass extinction of the Devonian, severely affecting marine life.
  • Period: 444 to 419

    Silurian

    During this time, the continental land masses were low and the sea level was rising. Possibly the biological event was the evolution and diversification of the fish.
  • Period: 485 to 444

    Ordovician

    The Ordovician is the fragmentation of the geological time scale that belongs to the Paleozoic Era; this is divided into six periods of which the Ordovician occupies the second place after the Cambrian and preceding the Silurian.