Would you like to continue your travels back through time? Well, jump on the Ancient Earth time machine app and travel back to a time before the supercontinent of Pangea came together (540 Ma- 200 Ma). This version of Ancient Earth vividly illustrates the continental collisions that assembled the the supercontinent of Pangea during the Paleozoic and early Mesozoic. Watch as the continents of Laurentia, Baltica, Siberia and Gondwana come together, mountain ranges rise and fall, old ocean basins close, landmasses are uplifted, and polar ice caps wax and wane.