Infraorder Spiruromorpha De Ley and Blaxter 2002 (roundworm)
Parent taxon: Spirurina according to G. O. Poinar 2011
Sister taxa: Ascaridomorpha, Oxyuridomorpha
Subtaxa: Cosmocercoidea Filarioidea
Parent taxon: Spirurina according to G. O. Poinar 2011
Sister taxa: Ascaridomorpha, Oxyuridomorpha
Subtaxa: Cosmocercoidea Filarioidea