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''Platypterygius'' ('Flat wing (flipper)', von Huene 1922) is an ichthyosaur of the family Ophthalmosauridae. It is most closely related to the genera ''Caypullisaurus'' and ''Brachypterygius''.〔Fernández M. 2007. Redescription and phylogenetic position of ''Caypullisaurus'' (Ichthyosauria: Ophthalmosauridae). ''Journal of Paleontology'' 81 (2): 368-375.〕 ==Discovery and species== Fossils are known from Australia, Russia, United States of America, Colombia,〔Páramo, M. E. ''Platypterygius sachicarum'' (Reptilia, Ichthyosauria) nueva especie del Cretácico de Colombia. ''Revista Ingeominas'' 6, 1997: 1–12〕 Western Europe and possibly New Zealand. There are seven named species. Both adults and juveniles have been unearthed, including newborns and pregnant females. Like other ichthyosaurs, ''Platypterygius'' gave live birth. The remains from Australia were originally called ''Ichthyosaurus australis''. They are from the Toolebuc Formation and Allaru Mudstone (Albian, Lower Cretaceous) of Flinders River and other localities in north central Queensland. In 1990 Wade erected the species name ''P. longmani'' to include all remains previously referred to ''I.australis ''. The cladogram below follows the topology from a 2010 analysis by Patrick S. Druckenmiller and Erin E. Maxwell. }} }} }} }} }} }} }} }} 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Platypterygius」の詳細全文を読む スポンサード リンク
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