Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Superkingdom Eukarya Chatton, 1925] see Domain Eukaryota Chatton, 1925
             [Kingdom Protoctista Hogg, 1860]
               [Phylum Archaeprotista]
                 [Class Parabasalia Honigberg, 1973] see Infraphylum Parabasalia Honigberg, 1973
                   [Order Hypermastigida Grassi, 1911 - hypermastigids] see Class Hypermastigia
                     [Family Hypermastigidaeᵀ]
                       [Genus Microspironympha Koidzumi, 1921] see Genus Spironympha Koidzumi, 1917
                         Microspironympha porferi