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 Spirotrichosomidae Hollande & Carruette-Valentin, 1971
      Count: [*] 6g
         Genus Bispironympha Bobyleva, 1969
        Count: -