Phylum Nematoda Gegenbaur, 1859 - round worms
   Class Secernentea Von Linstow, 1905
     Subclass Tylenchia (Thorne, 1949) Inglis, 1983
       Order Tylenchida G. Thorne, 1949
         Suborder Hexatylina Siddiqi, 1980
           Superfamily Sphaerularioidea Lubbock, 1861
             Family Allantonematidae Pereira, 1931
               Subfamily Allantonematinae Pereira, 1931
                 01 Genus Allantonema Leuckart, 1884
                 02 Genus Anandranema Poinar, Ferro, Morales & Tesh, 1993
                 03 Genus Bradynema zur Strassen, 1892
                 04 Genus Howardula Cobb, 1921
                 05 Genus Metaparasitylenchus Wachek, 1955
                 06 Genus Neoparasitylenchus Nickle, 1967
                 07 Genus Parasitylenchoides Wachek, 1955
                 08 Genus Pratinema Chizhov & Sturhan, 1998
                 09 Genus Proparasitylenchus Wachek, 1955
                 10 Genus Protylenchus Wachek, 1955
                 11 Genus Scatonema Bovien, 1932
                 12 Genus Sulphuretylenchus Rühm, 1956
                 13 Genus Thripinema Siddiqi, 1986