At the start of the Jurassic Period, the breakup of the supercontinent Pangaea continued and by the end of the period, the separation of the continents of Laurasia and Gondwana was almost complete.
At the beginning of the Jurassic Period, ‘s continents were in a single landmass called Pangaea, but continental drift had started. Much of the inland area was dry and desert-like.
Towards the end of the Jurassic, the earth’s surface was divided into two major continents and two major oceans.
The two major continents were Laurasia in the north, and Gondwana in the south. Laurasia consisted of North America, Europe and Asia, while Gondwana consisted of South America, Africa, India, Australia and Antarctica. The two major oceans were the Pacific Ocean in the western hemisphere and the Tethys Ocean in the eastern hemisphere.
By the late Jurassic, the North Atlantic was just beginning to appear between Europe and North America. Underwater volcanic activity caused the ocean floor to spread, thereby causing a rise of water levels. Mountains rose on the seafloor, pushing sea levels even higher and onto the continents. All this water turned the previously hot and dry climate into a humid and drippy climate.
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