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     The flora, glossopteris  of the south grew in a cold, wet climate, while that of the north existed under warm conditions. Based on the sheer number of leaf fossils found and the fact that the plants grew in a temperate climate at middle to high latitudes, therefore, the continent before has a temperate climate, wet to warm climate. The glossopteris fossils tell us that the early positions of the continents were once combined or amalgamated into a super continent---the Pangaea. The Glossopteridales turn out in the Southern Hemisphere around 298.9 million years ago, the beginning of the Permian Period.