What Was the Earth Like When Dinosaurs Were Around?

Approximately 252 mln years ago the Earth’s biosphere suffered from a tremendous blow. Almost 96% of marine fauna, around 70% of land vertebrates and roughly 83% of insects perished within a period really short by geological standards. The causes of this disaster are still obscure, but whatever it was, the dreadful calamity didn’t wipe life off the face of the Earth – quite on the contrary, it proved to be a milestone that marked the beginning of a new era. This is when there emerged the most well-known prehistoric creatures – dinosaurs.