life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
       Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
         Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
           Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
             Phylum Chordata Bateson, 1885 - chordates
               Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
                 Infraphylum Gnathostomata Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
                   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
                       Infraclass Tetrapodomorpha Ahlberg, 1991 see [unranked] Tetrapodomorpha Ahlberg, 1991
                         Osteolepidida Boulenger 1901 [Cloutier & Ahlberg 1996]
                           Eotetrapodiformes Coates & Friedman, 2010
                             1 Genus †Eusthenopteron Whiteaves, 1881
                             2.1 Genus †Tristichopterus Egerton, 1861
                             2.2 Elpistostegalia Camp & Allison, 1961