A Great discovery.

The dinosaurs which are a group of animals of the clade Dinosauria, First appeared 230 million years ago as the dominate terrestrial vertebrates. They were the terrestrial vertebrates for about 135 million years. They lived from the beginning of the Jurassic period about 201 million years ago until the end of the Cretaceous period about 66 million years ago. This is before the Cretaceous-Paleogene extinction event (the meteor) which wiped out most species. The few genera that did survive were mostly birds who now continue the race of dinosaurs. The person who first found fossils was Buckland who lived from 1784 - 1856. He was a British paleontologist & clergyman who collected fossils.  The first fossil was found in Iguanodon. Fossils have been found all over the world before this, in the roman times and before, and they thought that they were griffons and dragons.