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 Contortylenchinae Rühm, 1956
Genus Aphelenchulus Cobb, 1920