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 Euteleostei Greenwood et al., 1966 [monophyletic?] see Cohort Euteleostei Greenwood et al., 1966
                             Neoteleostei Nelson, 1969 - neoteleosts see Infracohort Neoteleostei Nelson, 1969
                               Eurypterygii Rosen, 1973 - eurypterygians see Infracohort Eurypterygia Rosen, 1973
                                 Ctenosquamata - ctenosquamates see Section Ctenosquamata Rosen, 1973
                                   Acanthomorpha Rosen, 1973 - spiny-rayed fishes see Subsection Acanthomorphata Rosen, 1973
                                     Euacanthomorpha Johnson & Patterson, 1993
                                       Holacanthopterygii Johnson & Patterson, 1993
                                         Superorder Acanthopterygii Rosen & Patterson, 1969 see Division Acanthopterygii Rosen & Patterson, 1969
                                           Series Atherinomorpha Greenwood et al., 1966 see Infraseries Atherinomorpha
                                             Superorder Cyprinodontea see [unranked] Cyprinodontoidei Dyer & Chernoff, 1996
                                               Order Cyprinodontiformes Berg, 1940 - killifishes
                                                 Suborder Cyprinodontoidei
                                                   Superfamily Funduloidea Günther, 1866
                                                     Family Goodeidae Jordan & Gilbert, 1883 - splitfins
                                                       Subfamily Goodeinae Jordan & Gilbert, 1883 - Mexican splitfins
                                                         01 Genus Allodontichthys Hubbs & Turner, 1939
                                                         02 Genus Alloophorus Hubbs & Turner, 1939
                                                         03 Genus Allotoca Hubbs & Turner, 1939
                                                         04 Genus Ameca Miller & Fitzsimons, 1971
                                                         05 Genus Ataeniobius Hubbs & Turner, 1939
                                                         06 Genus Chapalichthys Meek, 1902
                                                         07 Genus Characodon Günther, 1866
                                                         08 Genus Girardinichthys Bleeker, 1860
                                                         09 Genus Goodea Jordan, 1880
                                                         10 Genus Hubbsina de Buen, 1940 see Genus Girardinichthys Bleeker, 1860
                                                         11 Genus Ilyodon Eigenmann, 1907
                                                         12 Genus Skiffia Meek, 1902
                                                         13 Genus Xenoophorus Hubbs & Turner, 1939
                                                         14 Genus Xenotaenia Turner, 1946
                                                         15 Genus Xenotoca Hubbs & Turner, 1939
                                                         16 Genus Zoogoneticus Meek, 1902