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]
           [Domain Eucaryota]
             [Subdomain Chlorota Doweld (2001)]
               [Kingdom Bacillariobiota Doweld (2001)]
                 [Subkingdom Bacillariobiotinaᵀ Doweld (2001)]
                   [Phylum Pedinellophyta Moehn ex Doweld (2001)]
                     2 [Class Pedinellophyceaeᵀ Moehn ex Doweld (2001)]
                     3 [Class Actinophryphyceae Starobogatov (1980)]
                     3.0 [Class Actinophryatea Starobogatov, 1980] see Class Actinophryphyceae Starobogatov (1980)