organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Protoctista Hogg, 1860
     Phylum Zoomastigina see Phylum Discomitochondria
       Class "parabasalids" see Class Parabasalia Honigberg, 1973
         Order Trichomonadida Kirby, 1947 - trichomonads
           1 Family Monocercomonadidae Kirby, 1944
           2 Family Devescovinidae Doflein, 1911
           3 Family Trichomonadidae Chalmers & Pekkola, 1918
           4 Family Calonymphidae Grassi, 1911