Class Actinopterygii Woodward, 1891 - ray-finned fishes
   Subclass Neopterygii Regan, 1923
     Infraclass Teleostei Müller, 1845
       Supercohort Teleocephala de Pinna, 1996
         Clupeocephala
           Cohort Euteleosteomorpha (Greenwood et al., 1966)
             Subcohort Neoteleostei Nelson, 1969
               Infracohort Eurypterygia (Rosen, 1973)
                 Section Ctenosquamata Rosen, 1973
                   Subsection Acanthomorphata (Rosen, 1973)
                     Euacanthomorpha (Johnson & Patterson, 1993)
                       Holacanthopterygii Johnson & Patterson, 1993
                         Acanthopterygii Rosen & Patterson, 1969
                           Euacanthopterygii
                             Division Percomorphacea Wiley & Johnson, 2010
                               Order Pleuronectiformes Bleeker, 1859 - flatfishes
                                 Suborder Pleuronectoidei
                                   01 Family Citharidae
                                   02 Family Bothidae Norman, 1934 - lefteye flounders
                                   03 Family Achiropsettidae
                                   04 Family Scophthalmidae
                                   05 Family Paralichthyidae
                                   06 Family Pleuronectidae Rafinesque, 1815, nom. corr. - righteye flounders
                                   07 Family Samaridae
                                   08 Family Achiridae Rafinesque, 1815
                                   09 Family Soleidae Gilbert, 1905 - soles
                                   10 Family Cynoglossidae Jordan, 1963 - tonguefishes