Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [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 Blastocysta Zierdt, 1978] see Genus Blastocystis Alexeev (1911)
               [Grade Corticata Lankester, 1877]
               [Grade Gymnomyxa]
               [Grade Stomatodea]
               1 [Subphylum Sarcomastigophora] see Phylum Sarcomastigophora Honigberg & Balamuth, 1963
               1.3 [Class Sarkodina] see Class Sarcodina
               5 [Subphylum Cnidospora]
               6 [Class Infusoria] see Phylum Ciliophora Doflein, 1901