living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Sarcomastigophora Honigberg & Balamuth, 1963
           Subphylum Mastigophora Diesing, 1866 - flagellates
             Class Zoomastigophora see Class Zoomastigophorea
               Order Oxymonadida Grassé, 1952 - oxymonads
                 Family Oxymonadidae Kirby, 1928
                   1 Genus Oxymonas Janicki, 1915
                   2 Genus Microrhopalidina see Genus Microrhopalodina Grassi, 1911
                   3 Genus Barroella Zeliff, 1944