THE DINOSAURS AND THEIR EXTINCTION

 THE DINOSAURS

    • They are animals terrestrial like a reptile

    • The name of dinosaurs comes from the GREEK meaning scary lizard

    • They became extinct in the prehistoric epoch MESOZOICA

    • Inhabited millions years ago

    • Dominated the planet for 180 years

    • Ther were hervivores and carnivores

    • Some dinosaurs used to be bipedal wich means they walked on two legs and quadrupeds  means wich on four legs



TYPES OF DINOSAURS

Velociraptor

Triceraptop  

Ankylosaurus

Brontosaurios 

Pteranodon 

Carnotauro





  

The most important and the first dinosaur t-rex or tyranosaurus rex

The king the most feared and revered and





CARACTERS OF DINOSAURS

        1. They have upright posture
        2. They were oviparous
        3. They lived in the land
        4. Thei skull had hole between their eyes and nostrils


 

WHY THEY WENT EXTINCT

They were extinguished by the fall of a large asteroid.

 






 


Change evironmental.

It was a mass extinction

Alvare´s theory

Caused gas, dust and a large amount of iridium, an element in the Earth´s curst

They extinct 66 millions years ago

It said to fallen in the Yucatán peninsula in Mexico

Due to the crater called Chicxulub with 150 kilometers wide





FUN FACTS ABOUT DINOSAURS

  • Today´s bird revolutionized dinosaurs that probably had feathers.
  • The word dinosaur means '' terrible lizard´´ in GREEK
  • The dinosaurs dominted the Earth for 160 millions years from the Triassic and Cretaceous
  • It´s skulll is the largest of all the animalsthat have ever existed
  • We know that they existed thanks to the fossils that have been discovered










































































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