Step 1: Understand supercontinent configurations. The Mesozoic Era featured two supercontinents: Laurasia (north) and Gondwana (south).
Step 2: Find the Tethys Sea. This large ocean separated Laurasia and Gondwana.
Step 3: Determine modern continents from Laurasia and Gondwana. Laurasia formed North America and Eurasia. Gondwana became South America, Africa, Antarctica, Australia, and India.
Step 4: Determine the Tethys Sea's location. The Tethys Sea lay between future Eurasia and Africa. Plate collisions closed the Tethys Sea, creating the Alpine-Himalayan range.