Infraphylum [Gnathostomata] Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
   Megaclass Osteichthyes Huxley, 1880 see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
     Superclass Actinopterygii Woodward, 1891 see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
       Class Actinopteri Cope, 1871
         Subclass Neopterygii Regan, 1923
           Infraclass Teleostei Müller, 1845 see Division Teleostei Müller, 1845
             Megacohort Osteoglossocephalai
               Supercohort Clupeocephala Patterson & Rosen, 1977 see Cohort Clupeocephala Patterson & Rosen, 1977
                 Cohort Euteleosteomorpha Greenwood et al., 1966 see Subcohort Euteleosteomorpha Greenwood et al., 1966
                   Subcohort Neoteleostei Nelson, 1969 see Infracohort Neoteleostei Nelson, 1969
                     Infracohort Eurypterygia Rosen, 1973 see Supersection Eurypterygia Rosen, 1973
                       Section Ctenosquamata Rosen, 1973
                         Subsection Acanthomorphata Rosen, 1973
                           Division Acanthopterygii Rosen & Patterson, 1969
                             Subdivision Percomorphaceae
                               Series Ovalentaria Smith & Near, 2012
                                 Superorder Atherinomorphae Greenwood et al., 1966
                                   Order Cyprinodontiformes Berg, 1940 - killifishes
                                     1 Suborder Aplocheiloidei
                                     2 Suborder Cyprinodontoidei