gnathostomes
   Osteichthyes Huxley, 1880
     [crown] Sarcopterygii Romer, 1955
       [stem] Genus †Guiyu Zhu, Zhao, Jia, Lu, Qiao & Qu, 2009 [monotypic]
         1 †Guiyu oneiros Zhu, Zhao, Jia, Lu, Qiao & Qu, 2009