Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Class Osteichthyes Huxley, 1880 [paraphyletic] - bony fishes see [unranked] Euteleostomi
         Subclass Sarcopterygii Romer, 1955 see Clade Sarcopterygii Romer, 1955
           Order Dipnoi Müller, 1844 - lungfishes
             01 Family †Uranolophidae Miles, 1977
             02 Family †Dipnorhynchidae Berg, 1940
             03 Family †Dipteridae Owen, 1846
             04 Family †Rhynchodipteridae Berg, 1940
             05 Family †Phaneropleuridae Huxley
             06 Family †Ctenodontidae Traquair, 1890
             07 Family †Sagenodontidae Jaekel, 1911
             08 Family †Uronemidae Traquair, 1890
             09 Family †Conchopomidae
             10 Family Ceratodontidae Gill, 1872 - Australian lungfishes
             11 Family Lepidosirenidae Stirton, 1953 - South American lungfishes