living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Chromophycota see Phylum Chromophyta T.A.Chr. (1962), nom. nud.
           Class Bacillariophyceae Haeckel (1878) - pennates
             Order Centrales see Subclass Coscinodiscophycidae Round & R.M. Crawford (1990)
               Suborder Rhizosoleniineae see Order Rhizosoleniales P.C.Silva (1962)
                 Family Rhizosoleniaceae De Toni (1890)
                   1 Genus Dactyliosolen Castrac. (1886)
                   2 Genus Guinardia H. Perag. (1892)
                   3 Genus Rhizosolenia Brightw. (1858)