Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Vertebrata Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
         Myopterygii Janvier, 1978 - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836 see Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
               Euteleostomi - bony vertebrates see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
                 Class Sarcopterygii Romer, 1955 - lobe-finned fishes and tetrapods see [unranked] Sarcopterygii Romer, 1955
                   Subclass Dipnotetrapodomorpha Nelson, 2006 see [unranked] Dipnotetrapodomorpha Nelson, 2006
                     Rhipidistia Cope, 1887
                       Dipnomorpha Ahlberg, 1991
                         Dipnoi Müller, 1844 [monotypic] - lungfishes see Superorder Dipnoi Müller, 1844
                           Superorder Ceratodontimorpha [monotypic] see Order Ceratodontiformes Berg, 1940
                             Order Ceratodontiformes Berg, 1940 - living lungfishes and their fossil relatives
                               Suborder Lepidosirenoidei
                                 Family Lepidosirenidae Bonaparte, 1841 [monotypic] - South American lungfishes
                                   1 Genus Lepidosiren Fitzinger, 1836 [monotypic]