Jurassicperiod2 1

Jurassic Time Period

By elenin
  • Jan 1, 1000

    Start of Jurassic Period

    200 mya
  • Period: Jan 1, 1000 to Jan 1, 1054

    Jurassic (mya:1yr=1mil yrs)

    The Jurassic Period started 199.6 mya and ended 145.5 mya.
  • Jan 1, 1010

    Ichthyosaurus

    Ichthyosaurus
    The Icthyosaurus began showing fossils in layers of rock of about this age
  • Jan 1, 1020

    North America separates from Africa

    North America separates from Africa
    The Atlantic Ocean first appears between Africa and North America when the super continent breaks apart, Evidence for this event include dinasaur fossils found in Africa and North America of dinasaurs who could not swim.
  • Jan 1, 1033

    Meteor Impact

    Meteor Impact
    An 80 km crater was created, and serious damage was done to the land and surrounding areas.
  • Jan 1, 1034

    Evolutionary split between monotremes and primitive animals

    Evolutionary split between monotremes and primitive animals
    Monotromes serpate into primitive animals at about this time.
  • Jan 1, 1037

    Brachiosaurus Dinosaur

    Brachiosaurus Dinosaur
    The Brachiosaurus is thought to have emerged at some point between the middle and end of the Jurassic period.
  • Jan 1, 1042

    Patagosaurus

    Patagosaurus
    The Patagosaurus is thought to have emerged at some point between the middle and end of the Jurassic period.
  • Jan 1, 1043

    Diplodocus

    Diplodocus
    The Diplodocus dinasour is thought to have first come into exsistence at this time or shortly after.
  • Jan 1, 1045

    Stegosaurus

    Stegosaurus
    The first evidence for the Stegosauras is this date. It is clear because of its distinct fossilized scales.
  • Jan 1, 1050

    First winged birds appear, including the Archaeopteryx

    First winged birds appear, including the Archaeopteryx
    Small birds first started having feathers and then wings, shortly followed by winged reptiles such as the Arcgaeopteryx (picture)
  • Jan 1, 1052

    Evolutionary split between marsupials and eutherian mammals

    Evolutionary split between marsupials and eutherian mammals
    Marsupials and eutherian mammals distinctly split at this time.
  • Jan 1, 1054

    End of Jurassic Period

    146 mya
  • Jan 1, 1055

    Second meteor impact

    Second meteor impact
    This impact was slightly smaller leaving a 70 km crater.