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 Ciliophora Doflein, 1901 - ciliates
           Class Polyhymenophora Jankowski, 1967 see Class Spirotrichea Bütschli, 1889
             Subclass Spirotricha see Class Spirotrichea Bütschli, 1889
               Order Heterotrichida Stein, 1859 - heterotrichs
                 Suborder Heterotrichina see Order Heterotrichida Stein, 1859
                   Family Spirostomidae Stein, 1867
                     1 Genus Blepharisma Perty, 1849
                     2 Genus Spirostomum Ehrenberg, 1834
                     3 Genus Anigsteinia Isquith, 1968
                     4 Genus Gruberia Kahl, 1932
                     5 Genus Parablepharisma Kahl, 1932, nom. nud.
                     6 Genus Pseudoblepharisma Kahl, 1926[1927]