Animalia | Platyhelminthes | Trematoda | Plagiorchiida | Psilostomidae | Psilochasmus
Biota | Animalia | Platyhelminthes | Rhabditophora | Neodermata | Trematoda | Digenea | Plagiorchiida | Echinostomata | Echinostomatoidea | Psilostomidae | Psilostominae | Psilochasmus | Psilochasmus oxyurus
|  | Minot, 1876 | Ehlers, 1985 | Ehlers, 1985 |  | Carus, 1863 | La Rue, 1957 | La Rue, 1926 | Looss, 1902 | Looss, 1900 | Looss, 1900 | Lühe, 1909 | (Creplin, 1825) Lühe, 1909