Jurassicpark 290715

Life on Earth - Dinosaurs

By kanade

  • Mesozoic Era 250-65million years ago

    An interval of geological time from about 252 - 65 million years ago.
    The Mesozoic Era is devided into three time periods;
    Triassic, Jurassic, and Cretacious

  • Triassic 225 million years ago

    First period of the Mesozoic Era from 252 to 200 million yrs ago
    The time that the world continent of Pangea existed
    Hot, dry and desert like
    First species: Coelophysis, Eoraptor
  • Nyasasaurus: First Dinasour. 243 Million years old.

    Nyasasaurus: First Dinasour. 243 Million years old.

    Found in Tanzania in 1930, but recently studied.

  • Jurrassic - 199.6 million years ago

    The second period; about 200 to 145 million yrs ago
    Warm and Humid
    Pangea broke up into two continents: Laurasia & Gondwana
    T- rex, stegosaurs, etc
  • Archaeopteryx: "First Bird" Lived 155-149 Million Years Ago

    Archaeopteryx: "First Bird" Lived 155-149 Million Years Ago

  • Cretaceous - 145.5 - 65 million yeas ago

    Warm due to volcanic activity
    Sea levels began to rise
    Laurasia & Gondwana broke up to the continents seen today

  • First Ants: 80 million years ago

  • T-Rex in North America: 68 million years ago

    T-Rex was in the Cretaceous Era not in the Jurassic Era

  • Cretaceous - Paleogen Extinction Event: 65 million years ago

    Destroyed 3 quarters of life form
    End of Cretaceous and Mesozoic Era
    Beginning of Cenozoic Era (Present)