Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801
   Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
     Subclass Sarcopterygii Romer, 1955 - lobe-finned fishes and tetrapods see [unranked] Sarcopterygii Romer, 1955
       Superorder Crossopterygii (Huxley, 1861)
         1 Order †Onychodontida Andrews, 1973
         2 Order †Porolepiformes Jarvik, 1942 see Order Porolepidiformes Jarvik, 1942
         3 Order †Osteolepiformes Berg, 1937 see Order Osteolepidiformes Berg, 1937
         4 Order Actinistia Cope, 1872 - coelacanths see [unranked] Coelacanthimorpha