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] [Division Chrysophyta] see Phylum Chrysophyta Pascher (1914) [Class Diatomophyceae Rabenh. (1864)] see Class Bacillariophyceae Haeckel (1878)