History of Dinosaurs and cause of their extinction - The Jurassic era of our earth
It is the story of the time when on our earth the dinosaurs used to live. It is about 65 million years ago the giant dinosaurs roaming in grasslands and these battleship size creatures dominate the skies. The mammals of that era were very small they were not like today’s rhinos; hippopotamus as they were not evolved because the big chunk of food was consumed by mighty dinosaurs. With time these mighty creatures became extinct, what had happened to these creatures and what killed dinosaurs and what is history of dinosaurs the researchers are working hard to find these answers. Here are possible causes for the extinction of these huge size creatures. The time in which dinosaurs were alive is known as the Mesozoic era. This long time frame is divided into three periods. First was a Triassic period, second the Jurassic period, third the cretaceous period. The Triassic period was 250 – 200 million years ago the interesting thing of that period was the earth has only one continent c