The-dinosaurs

The dinosaurs


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   For 165 millon years, life on earth was dominated by the most spectanclar animals that have been ever existed –the the dinosers.
The mosozoic era was a high point in the history of life , because it was the age of dinosaurs. These fantastic creature included the biggest, heaviest, and most terrifying of all land animals. They evolved into an amazing variety of form ranging from huge, armoured leaf –eaters to nimble, feathered hunters, and give rise to the birds that still flourish today.

Family tree 

  All the dinosaurs of the Mesozoic era except the very earliest species belonged to two main group known as the ornithischinans and saurischians. The ornithischians evolved into three main types that were neainto nearly all plant-eaters. The saurichians were divided into the mainly meat-eating teropods
Different types of dinosaurs
Ornithischians , saurischians, marginocephalians, theropods, sauropodomorphs , ornithopodo, thyreophorans