Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Plantae Haeckel (1866) - plants
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Phylum Chlorophyta Pascher (1914) [coordinate rank] - green algae
                               Genus †Cymatiosphaera Wetzel, 1933 ex Deflandre, 1954
                                 †Cymatiosphaera acuminata Mullins (2001)
                                 ?†Cymatiosphaera imperfecta Le Hérissé (1989)
                                 †Cymatiosphaera lawsonii Mullins (2001)
                                 †Cymatiosphaera ledburica Dorning (1981)
                                 †Cymatiosphaera mariae Cramer et al. (1976)
                                 †Cymatiosphaera mortimerensis Mullins (2001)
                                 †Cymatiosphaera multicristata Mullins (2001)
                                 †Cymatiosphaera multisepta Deunff (1955)
                                 †Cymatiosphaera octoplana Downie (1959)
                                 †Cymatiosphaera paucimembranae Mullins (2001)
                                 †Cymatiosphaera radiataᵀ Wetzel (1933)
                                 †Cymatiosphaera salopensis Mullins (2001)