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]
             [Phylum Spongiae] see Phylum Spongia
               [Autospongiae]
                 2 [Class Ceratospongiae]
                 3 [Class Silicispongiae]