The discovery of Glossopteris fossils provides evidence that the continents were once connected in a supercontinent called Pangaea. Glossopteris fossils have been found in what is now India, Antarctica, Australia, and Madagascar, indicating that these landmasses were once joined together. The presence of Glossopteris fossils in Antarctica suggests that the continent had a tropical to subtropical climate at one time. Therefore, the discovery of Glossopteris fossils tells us that the early positions of the continents were different from their current positions and that they were once connected in a supercontinent.