Lepocreadiata Olson, Cribb, Tkach, Bray & Littlewood, 2003 Lepocreadioidea Odhner, 1905 Rodzina Lepocreadiidae Odhner, 1905 Deropristis inflata (Molin, 1859) Opechona bacillaris (Molin, 1859)
Monorchiata Olson, Cribb, Tkach, Bray & Littlewood, 2003 Monorchioidea Odhner, 1911 Rodzina Monorchiidae Odhner, 1911 Asymphlodora demeli Markowski, 1933 Asymphlodora imitans (Muhling, 1898) Asymphlodora kubanicum (Issaitschikoff, 1928) Asymphlodora markewitschi Kulakovskaja, 1947 Asymphlodora tincae (Modeer, 1790) Palaeorchis incognitus Szidat, 1943 Palaeorchis unicus Szidat, 1943
Pronocephalata Olson, Cribb, Tkach, Bray & Littlewood, 2003 Paramphistomoidea Rodzina Diplodiscidae Diplodoscus subclavatus (Pallas, 1760) Ophistodiscus diplodiscoides Cohn, 1904
Rodzina Paramphistomidae Paramphistomum cervi Schrank, 1790 Paramphistomum ichigawai Fukui, 1922 Stichorchis subtriquetrus (Rudolphi, 1814)
Pronocephaloidea Looss, 1899 Rodzina Notocotylidae Lühe, 1909 Catatropis verrucosa (Frolich, 1789) Notocotylus attenuatus (Rudolphi, 1809) Notocotylus diserialis Sinitzin, 1896 Notocotylus ephemera (Nitzsch, 1817) Notocotylus imbricatus (Looss, 1894) Notocotylus linearis (Rudolphi, 1819) Notocotylus noyeri Joyeux, 1922 Notocotylus pacifer (Noble, 1933) Paramonostomum alveatum (Mehlis in Creplin, 1846)