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]
           [Kingdom Protista (Haeckel, 1866) - protists]
             ["actinopods"]
               2 [Phylum Taxopoda Fol, 1883]
               3 [Phylum Acantharia Haeckel, 1879]
               4 [Phylum Polycystina Ehrenberg, 1838]
               5 [Phylum Phaeodaria Haeckel, 1879]