[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Supergroup Excavata Cavalier-Smith, 2002 see [unranked] Excavata Cavalier-Smith, 2002
       Parabasalia Honigberg, 1973 see Infraphylum Parabasalia Honigberg, 1973
         Trichomonadida Kirby, 1947
           1 Genus Cochlosoma Kotlán, 1923
           2 Genus Dientamoeba Jepps & Dobell, 1918
           3 Genus Monocercomonas Grassi, 1879
           4 Genus Pentatrichomonoides Kirby, 1931
           5 Genus Pseudotrichomonas Bishop, 1939
           6 Genus Trichomitopsis Kofoid & Swezy, 1919
           7 Genus Trichomonas Donné, 1836
           8 Genus Tritrichomonas Kofoid, 1920