Phylum Nematoda Gegenbaur, 1859 - round worms
   Class Secernentea Von Linstow, 1905
     Subclass Tylenchia (Thorne, 1949) Inglis, 1983
       Order Tylenchida G. Thorne, 1949
         Suborder Hoplolaimina Chizhov & Berezina, 1988
           Superfamily Hoplolaimoidea (Filipjev, 1934) Paramonov, 1967 see Superfamily Tylenchoidea Örley, 1880
             Family Pratylenchidae Thorne, 1949
               Subfamily Radopholinae Allen & Sher, 1967
                 1 Genus Radopholus Thorne, 1949
                 2 Genus Achlysiella Hunt, Bridge & Machon, 1989
                 3 Genus Apratylenchoides Sher, 1973
                 4 Genus Hoplotylus s'Jacob, 1960
                 5 Genus Pratylenchoides Winslow, 1958
                 6 Genus Radopholoides De Guiran, 1967
                 7 Genus Zygradus Siddiqi, 1991