living organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Superkingdom Eukaryotae
 see Domain Eukaryota Chatton, 1925
    
 Kingdom Animalia Linnaeus, 1758 - animals
      
 Subkingdom Eumetazoa Butschli, 1910
 see [unranked] Eumetazoa Bütschli, 1910
        
 Phylum Chordata Bateson, 1885 - chordates
          
 Subphylum Vertebrata Cuvier, 1812 - vertebrates
 see Infraphylum Vertebrata Lamarck, 1801
            
 Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods
 see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
              
 Subclass Actinopterygii Woodward, 1891 - ray-finned fishes
 see Class Actinopterygii Woodward, 1891
                
 01 Order Acipenseriformes Berg, 1940 - paddlefishes and sturgeons
                
 02 Order Semionotiformes Aramboug & Bertin, 1958
                
 03 Order Amiiformes Huxley, 1861 - bowfins
                
 04 Order Osteoglossiformes Berg, 1940 - bonytongues
                
 05 Order Mormyriformes
 see Suborder Mormyroidei
                
 06 Order Clupeiformes Goodrich, 1909 - herrings
                
 07 Order Elopiformes Gosline, 1960 - tenpounders
                
 08 Order Anguilliformes Berg, 1943 - eels
                
 09 Order Notacanthiformes Goodrich, 1909 - halosaurs and deep-sea spiny eels
                
 10 Order Salmoniformes Bleeker, 1859 - trout, salmon, and whitefish
                
 11 Order Gonorynchiformes Regan, 1909 - milkfishes
                
 12 Order Cypriniformes Bleeker, 1859 - carps, loaches, minnows, and relatives
                
 13 Order Siluriformes Bleeker, 1858 - catfishes
                
 14 Order Myctophiformes Regan, 1911 - lanternfishes
                
 15 Order Polymixiiformes Lowe, 1838 - beardfishes
                
 16 Order Percopsiformes Berg, 1937 - trout-perches
                
 17 Order Gadiformes Goodrich, 1909 - cods and hakes
                
 18 Order Batrachoidiformes Berg, 1937 - toadfishes
                
 19 Order Lophiiformes Garman, 1899 - anglerfishes
                
 20 Order Atheriniformes Rosen, 1964 - silversides
                
 21 Order Lampriformes - opahs
                
 22 Order Beryciformes Günther, 1880 - beryciforms
                
 23 Order Zeiformes Jordan, 1905 - dories
                
 24 Order Gasterosteiformes Gill, 1872 - sticklebacks
 see Infraorder Gasterosteales
                
 25 Order Synbranchiformes - swamp eels
                
 26 Order Scorpaeniformes Bloch, 1789 - mail-cheeked fishes
 see Order Perciformes Bleeker, 1859
                
 27 Order Dactylopteriformes Jordan, 1923
 see Suborder Dactylopteroidei Jordan, 1923
                
 28 Order Perciformes Bleeker, 1859 - perches
                
 29 Order Gobiesociformes Gill, 1872 - clingfishes
 see Suborder Gobiesocoidei Bertin & Arambourg, 1958
                
 30 Order Pleuronectiformes Bleeker, 1859 - flatfishes
 see Suborder Pleuronectoidei
                
 31 Order Tetraodontiformes Berg, 1937 - plectognaths