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Glossopteris was a seed-bearing fern of the Paleozoic era. Scientists have discovered fossils of Glossopteris on all of the southern continents, including Antarctica. Use Glossopteris to construct an explanation of how Earth's continents have changed over geologic time.

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Glossopteris fossils have been found in Africa, South America, Australia, India, and Antarctica. The occurrence of Glossopteris on landmasses that are now separated by oceans indicates that Pangaea once existed. Mesosaurus and Lystrosaurus fossils have been found in places now separated by oceans.

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