199- 145 mya


Dinosaurs dominated most of the land. One of the organisms was dinosaurs. Some of the organisms that lived in the jurassic period are ferns, spinosaurus, plesiosaurs, echidnas, and lampreys.


The Jurassic time period consisted of 2 major oceans, the Pacific Ocean, and Tethys Ocean. The climate was hot and dry. At the beginning of the Jurassic, Earth's continents were still together, forming the supercontinent Pangea. Towards the end of the Jurassic the continents were beginning to drift apart. The atmospheric CO2 levels were five times higher than the present atmospheric level. There were a lot of rocks distributed throughout the land.