THE DINOSAURS

                       THE DINOSAURS

      FOR 165 MILLION YEARS, LIFE ON EARTH WAS DOMINATED BY THE MOST SPECTACULAR ANIMALS 

THAT HAVE EVER EXISTED _ THE DINOSAURS

                               ORNITHISCHAINS

 The word ornithischains means "Bird-Hipped". It refers to the way that the pelvic bones of these dinosaurs resemble those of birds .

The Ornithischains also head beaks supported by special jawbones .

But confusingly the bird themselves are small theropod dinosaurs, part of the saurischain group.

                                     SAURISCHAINS 

  The saurischains dinosaurs of the early Mesozoic Era had pelvic bones that resembled those of lizards, so the word saurischains means "Lizard-Hipped" . But many of the later forms evolved bird like pelvic bones,which the birds were to inherit . Saurischains also had longer ,more flexible necks than the Ornithischains.