Final answer:
Pangaea separated into Laurasia and Gondwanaland, leading to the Northern and Southern Hemisphere continents respectively.
Step-by-step explanation:
Over time, Pangaea separated into two major landmasses: Laurasia, which would eventually become today's Northern Hemisphere continents, and Gondwanaland, the precursor to the continents in the Southern Hemisphere. This process occurred during the Mesozoic era, roughly 200 million years ago. The first dinosaurs diverged from other reptiles and took to different environments, while significant plant species like seed ferns and conifers dominated the forests. Simultaneously, modern corals, fish, and insects evolved, illustrating the dynamic biodiversity of the era.