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 Carangaria
                                 Order Pleuronectiformes Bleeker, 1859 - flatfishes see Suborder Pleuronectoidei
                                   Suborder Pleuronectoidei
                                     01 Family Achiridae Rafinesque, 1815 - American soles
                                     02 Family Bothidae Smitt, 1892 - lefteye flounders
                                     03 Family Citharidae de Buen, 1935 - largescale flounders
                                     04 Family Cynoglossidae Jordan, 1888 - tonguefishes
                                     05 Family "Cyclopsettidae" Betancur-R., Wiley, Arratia, Acero, Bailly, Miya, Lecointre & Ortí, 2017, nom. nud. see Family Cyclopsettidae Campbell, Chanet, Chen, Lee & Chen, 2019
                                     06 Family Paralichthyidae Regan, 1910 - sand flounders
                                     07 Family Pleuronectidae Rafinesque, 1815 - righteye flounders
                                     08 Family Poecilopsettidae Norman, 1934 - bigeye flounders
                                     09 Family Rhombosoleidae Regan, 1910 - South Pacific flounders
                                     10 Family Samaridae Jordan & Goss, 1889 - crested flounders
                                     11 Family Scophthalmidae Chabanaud, 1933 - turbots
                                     12 Family Soleidae Bonaparte, 1833 - soles
                                     13 Family Paralichthodidae Regan, 1920 - peppered flounders