Phylum Parabasalia Honigberg, 1973 see Infraphylum Parabasalia Honigberg, 1973
Count: [*] 6c;7o;16f;90g;15s [10 Dec 2023]
   Class Trichonymphea Hartmann, 1911
  Count: [*] 1o;5f;16g
     Order Trichonymphida Hartmann, 1911
    Count: [*] 5f;16g
       Family Trichonymphidae Kent, 1880
      Count: [*] 1g
         Genus Trichonymphaᵀ Leidy, 1877
        Count: -