[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Protista (Haeckel, 1866) - protists
     Phylum Protozoa (Goldfuss, 1818) C.T. von Siebold, 1854 see Kingdom Protozoa Goldfuss, 1818
       Subphylum Sarcomastigophora see Phylum Sarcomastigophora Honigberg & Balamuth, 1963
         Class Mastigophora Diesing, 1866 see Subphylum Mastigophora Diesing, 1866
           Subclass Zoomastigophorea see Phylum Zoomastigina
             Order Rhizomastigida Doflein, 1916
               Genus Histomonas Tyzzer, 1920
                 Histomonas meleagris see Histomonas meleagridis Tyzzer, 1924