Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Craniata Linnaeus, 1758 see Subphylum Vertebrata Cuvier, 1812
     Pisces
       Class Sarcopterygii Romer, 1955 - lobe-finned fishes and tetrapods see Clade Sarcopterygii Romer, 1955
         1 Order Coelacanthiformes Jarvik, 1942 - coelacanths
         2 Order Ceratodontiformes Berg, 1940 - living lungfishes
         3 Order Lepidosireniformes Savage, 1951 see Order Dipnoi Müller, 1844