gnathostomes
   Osteichthyes Huxley, 1880
     [crown] Sarcopterygii Romer, 1955
       1 [stem] Genus †Ligulalepis Schultze, 1968
       2.1 [stem] Genus †Meemannia Zhu, Yu, Wang, Zhao & Jia, 2006
       2.2.1.1 [stem] Genus †Guiyu Zhu, Zhao, Jia, Lu, Qiao & Qu, 2009 [monotypic]
       2.2.1.2.1 [stem] Genus †Psarolepis Xiaobo Yu, 1998
       2.2.1.2.2 [stem] Genus †Achoania Zhu, Yu & Ahlberg, 2001
       2.2.2.1.1 [crown] Genus †Miguashaia Schultze, 1973
       2.2.2.1.2 [crown] Genus †Onychodus Newberry, [1857]
       2.2.2.2.1 [crown] Genus †Styloichthys Zhu & Yu, 2002
       2.2.2.2.2.1.1.1 [crown] Genus †Diabolepis Zhang & Yu, 1987
       2.2.2.2.2.1.1.2 [crown] Genus †Youngolepis Zhang & Yu, 1981
       2.2.2.2.2.1.2 [crown] Genus †Powichthys Jessen, 1975
       2.2.2.2.2.2 [crown] Genus †Kenichthys Chang & Zhu, 1993