Animalia | Platyhelminthes | Trematoda | Plagiorchiida | Cladorchiidae | Megalodiscus
Biota | Animalia | Platyhelminthes | Rhabditophora | Neodermata | Trematoda | Digenea | Plagiorchiida | Pronocephalata | Paramphistomoidea | Cladorchiidae | Schizamphistominae | Megalodiscus | Megalodiscus temperatus
|  | Minot, 1876 | Ehlers, 1985 | Ehlers, 1985 |  | Carus, 1863 | La Rue, 1957 | Skrjabin, 1955 | Fischoeder, 1901 | Fischoeder, 1901 | Looss, 1912 | Chandler, 1923 | (Stafford, 1905) Harwood, 1932