Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Vertebrata Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
         Myopterygii Janvier, 1978 - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836 see Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
               Euteleostomi - bony vertebrates see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
                   Subclass Neopterygii Regan, 1923
                     Division Teleostei Müller, 1845
                       Elopocephala Arratia, 1999 see Supercohort Teleocephala de Pinna, 1996
                         Clupeocephala Patterson & Rosen, 1977 see Cohort Clupeocephala Patterson & Rosen, 1977
                           Subdivision Ostarioclupeomorpha Arratia, 1997 see Cohort Otocephala Johnson & Patterson, 1996
                             Superorder Ostariophysi Sagemehl, 1885
                               Series Otophysi Rosen & Greenwood, 1970 see Section Otophysa Rosen & Greenwood, 1970
                                 Cypriniphysi Fink & Fink, 1981
                                   Characiphysi Fink & Fink, 1981 see Subseries Characiphysi Fink & Fink, 1981
                                     Siluriphysi Fink & Fink, 1996
                                       Order Siluriformes Bleeker, 1858 - catfishes
                                         Superfamily Heptapteroidea Gill, 1861 [monotypic] see Superfamily Pimelodoidea Bonaparte, 1835
                                           Family Heptapteridae Gill, 1861 - seven-finned catfishes
                                             01 Genus Acentronichthys Eigenmann & Eigenmann, 1889
                                             02 Genus Brachyglanis Eigenmann, 1912
                                             03 Genus Brachyrhamdia Myers, 1927
                                             04 Genus Cetopsorhambia Nelson, 2006, orth. inval. see Genus Cetopsorhamdia Eigenmann & Fisher, 1916
                                             05 Genus Chasmocranus Eigenmann, 1912
                                             06 Genus Gladioglanis Ferraris & Mago-Leccia, 1989
                                             07 Genus Goeldiella Eigenmann & Norris, 1900
                                             08 Genus Heptapterus Bleeker, 1858
                                             09 Genus Imparfinis Eigenmann & Norris, 1900
                                             10 Genus Leptorhamdia Eigenmann, 1918
                                             11 Genus Pimelodella Eigenmann & Eigenmann, 1888
                                             12 Genus Rhamdella Eigenmann & Eigenmann, 1888
                                             13 Genus Rhamdia Bleeker, 1858
                                             14 Genus Taunayia Miranda Ribeiro, 1918