In general, an area which has, relative to other areas, a great concentration of different lineages within a particular family is likely to be the original ancestral home of that family.[citation needed] The diversity of Psittaciformes in South America and Australasia suggests that the order has a Gondwanan origin. The parrot family's fossil record, however, is sparse and their origin remains a matter of informed speculation rather than fact.Europe is the origin of the first generally accepted parrot fossils. They date from the Eocene, starting around 50 mya (million years ago). Several fairly complete skeletons of parrot-like birds have been found in England and Germany. Some uncertainty remains, but on the whole it seems more likely that these are not true ancestors of the modern parrots, but related lineages which evolved in the Northern Hemisphere but have since died out