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Augustasaurus : ウィキペディア英語版 | Augustasaurus
''Augustasaurus'' is a genus of aquatic sauropterygian reptile belonging to the Pistosauria, a clade containing plesiosaurs and their close relatives. ''Pistosaurus'' and ''Augustasaurus'' were thought to be the only known members of the family Pistosauridae.〔Journal of Vertebrate Paleontology. Article: pp. 577–592. THE SKULL OF THE PISTOSAUR AUGUSTASAURUS FROM THE MIDDLE TRIASSIC OF NORTHWESTERN NEVADA. OLIVIER RIEPPEL, P. MARTIN SANDER, and GLENN W. STORRS. 1997〕 However, some recent cladistic analyses found ''Augustasaurus'' to be a more advanced pistosaur, as a sister group of the order Plesiosauria. The only known species of ''Augustasaurus'' is ''Augustasaurus hagdorni '', which was first described in 1997. ==Etymology== The first part of ''Augustasaurus name comes from the Augusta Mountains of northwestern Nevada,〔(【引用サイトリンク】title=Plesiosaur.com entry on ''Augustasaurus'' )〕 USA, where its fossil bones were first discovered.〔 The second part of the name is the Greek word ''sauros'' (''σαυρος''), which means "lizard" or "reptile."〔 The type species, ''Augustasaurus hagdorni'', was named in honor of the paleontologist Hans Hagdorn.〔
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