Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
       Vertebrata (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812
         Myopterygii - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836
               Euteleostomi - bony vertebrates
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes
                   Subclass Neopterygii Regan, 1923
                     Division Teleostei Müller, 1845 see Infraclass Teleostei Müller, 1845
                       Elopocephala see Supercohort Teleocephala de Pinna, 1996
                         Clupeocephala
                           Subdivision Ostarioclupeomorpha Arratia, 1997 see Cohort Otomorpha E.O. Wiley & G.D. Johnson, 2010
                             Superorder Ostariophysi Jordan & Evermann, 1896 see Subcohort Ostariophysi Sagemehl, 1885
                               Series Otophysi Rosen & Greenwood, 1970 see Section Otophysa (Rosen & Greenwood, 1970)
                                 Cypriniphysi
                                   Characiphysi Fink & Fink, 1981 see Superorder Characiphysae (Fink & Fink, 1981)
                                     Siluriphysi Fink & Fink, 1996
                                       Order Siluriformes Rafinesque, 1810 - catfishes
                                         Superfamily Loricarioidea Rafinesque, 1815
                                           Family Loricariidae Rafinesque, 1815 - suckermouth armored catfishes
                                             Subfamily Ancistrinae
                                               01 Genus Ancistrus Kner, 1854
                                               02 Genus Chaetostoma Tschudi, 1846
                                               03 Genus Hemiancistrus Bleeker, 1862
                                               04 Genus Hypancistrus Isbrücker & Nijssen, 1991
                                               05 Genus Lasiancistrus Regan, 1904
                                               06 Genus Lithoxus Eigenmann, 1912
                                               07 Genus Megalancistrus Isbrücker, 1980
                                               08 Genus Panaque Eigenmann & Eigenmann, 1889
                                               09 Genus Peckoltia Miranda Ribeiro, 1912
                                               10 Genus Pseudacanthicus Bleeker, 1862
                                               11 Genus Pseudancistrus Bleeker, 1862