This is a very interesting story of how science works with all its twists and turns. A good read.
>>Nothing could be more different to the dry windy plains of Patagonia than the moist rainforests of the New Guinea highlands.
Yet researchers reporting today in the journal Science say fossils of a beech tree found in southern Argentina are from a genus which these days grows in the wet forests of South-East Asia and New Guinea — thousands of kilometres north of freezing Patagonia.<<
https://www.abc.net.au/news/science/2019-06-07/fossil-nuts-from-gondwanan-beech-tree-challenges-plant-evolution/11184956