Glossopteris fossils provide evidence that continents like Africa, Australia, India and Antarctica were once connected. The large seeds of Glossopteris could not have been dispersed vast ocean distances by wind or water. Similarly, Mesosaurus fossils found in South America, Africa and Antarctica indicate these continents were once joined, as these reptiles could not have swam between continents. Reconstructing Pangaea relies on clues from fossil matches between continents and the matching edges of continental plates.