Science Solution - How Temperate Climate Plants are found in Antartica

There can be many theories to explain why temperate climate plants are found in Antartica. One theory is that Antartica would have once been warmed. It may be warm because it was part of Pangea and that cause a warm temperate climate for organisms to survive. The organisms may have travel there and inhabit it, but when plate tectonics moves and separate Pangea. The climate may have turn cooler because it is towards the equator. Then the organisms may not have notice that the plates had moved and wasn't prepared for the cold. Or they weren't able to adapt fast enough to the climate change. Therefore, most species died out. This is one of the theory. 
     The theory may have been proven because organisms were preserved by the ice. Then it was discover today. That may be how the theory may have happen. As you can see, Antartica was different from long ago and today.