Oip

Living Fossils (million years ago)

  • Period: 4600 BCE to 2500 BCE

    Archean Eon

    This is time when the first single celled organisms originated. For example: bacteria.
  • Period: 2500 BCE to 539 BCE

    Proterozoic Eon

    It means "before animal life". Basically, there were existed: bacterias, algae and worm-like creatures.
  • Period: 544 BCE to

    Phanerozoic Eon

    Most of the major groups of animals first appear in the fossil record and continues through today.
  • Cyanobacteria
    541 BCE

    Cyanobacteria

  • Period: 541 BCE to 252 BCE

    Paleozoic era

    "Ancient life"
    The livings at that time were relatives of the sponge and trilobites.
  • Period: 541 BCE to 485 BCE

    Cambrian period

    Most of the major groups of animals first appear in the fossil record.
  • Charnia
    539 BCE

    Charnia

  • Period: 488 BCE to 443 BCE

    Ordovician period

    During this period, there were various marine invertebrates and conodonts (early vertebrates).
  • Helicoplacus
    485 BCE

    Helicoplacus

  • Period: 444 BCE to 419 BCE

    Silurian period

    Period of coral reef. Including relatives of spiders and centipedes...
  • Cephalopods
    443 BCE

    Cephalopods

  • Sponges
    419 BCE

    Sponges

  • Period: 419 BCE to 359 BCE

    Devonian period

    Ferns, horsetails and seed plants had appeared. Therefore, tehy have formed forests.
  • Period: 360 BCE to 299 BCE

    Carboniferous period

    It is characterized of the amniote egg (which allowed the ancestors of birds, mammals, reptiles to reproduce). And also by the increased in large insects and tree ferns.
  • Mammals
    359 BCE

    Mammals

  • Placoderms
    359 BCE

    Placoderms

  • Tree fern
    299 BCE

    Tree fern

  • Period: 299 BCE to 252 BCE

    Permian period

    During this period, the land continents came together to form Pangaea. This period had a great variety of species.
  • Trilobite
    252 BCE

    Trilobite

  • Period: 252 BCE to 66 BCE

    Mesozoic era

    "Middle life"
    There were dinosaurs, cycads and ferns.
  • Period: 252 BCE to 201 BCE

    Triassic period

    There were no polar ice caps, and the climate at the equator was hot and dry, punctuated by violent monsoons.
  • Seymouria
    251 BCE

    Seymouria

  • Ammonite
    201 BCE

    Ammonite

  • Period: 201 BCE to 56 BCE

    Jurassic period

    During this time dinosaurs roamed the Earth and there were various plants like cycads, growth of ferns... And also there were marine species: fish, squid and coiled ammonites.
  • Diplodocus
    156 BCE

    Diplodocus

  • Period: 145 BCE to 66 BCE

    Cretaceous period

    The first ceratopsiand and pachycelhalosaurid dinosaurs appeared. And were found many fossils of many species of this period.
  • Dinosaurs
    66 BCE

    Dinosaurs

  • Megaloceros
    66 BCE

    Megaloceros

  • Plesiosaurs
    66 BCE

    Plesiosaurs

  • Period: 66 BCE to

    Cenozoic era

    "Recent life"
    There were living mammals, birds, flowering plants and ray-finnes fishes.
  • Period: 66 BCE to 2 BCE

    Tertiary period

    This period suffered a big extinction, due to biological changes. Although, there were quite amount of plants, grasslands, insects, teleost fish, birds, and also mammals.
  • Teleost fish
    2 BCE

    Teleost fish

  • Humans
    2 BCE

    Humans

  • Period: 2 BCE to

    Quaternary period

    Mammoths and mastodons, sabre-toothed cats, giant ground sloths, and many other large mammals roamed North America, Asia, and Europe. In this period, ocurred human civilization. Humans still exist today.