The same process that would eventually break apart Pangea led to its formation—the continents seemingly moving around the planet like icebergs on an ocean. There were two large landmasses on Earth during the Paleozoic era—Laurasia (North America and Eurasia) to the north of the equator, and Gondwanaland (or Gondwana, including South America, Africa, India, Antarctica, and Australia) to the south of the equator. These two continents slowly collided during the Late Paleozoic era, forming the supercontinent of Pangea. By the beginning of the Mesozoic era, Pangea was still the only true continent on the planet.