8. Jurassic Earth

Earth during the Jurassic Period

The Jurassic Period was the second period fo the Mesozoic Era. Starting 201.3 million years ago and ending about 145 million years ago, the dinosaurs were in their prime during this period. Evolving into the most fearsome predators, large herbivores with an arrangement of different weapons and most of the pterosaurs were in their prime of taking over the skies along with the largest marine reptiles that have taken over the world's ocean.