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 Phaeophyceae Hansgirg (1886) - brown algae
             Order Sphacelariales Migula (1908)
               Family Sphacelariaceae Decaisne (1842)
                 Genus Battersia Reinke ex Batters (1890)
                 Genus Disphacella Sauvageau (1903)
                 Genus Onslowia R.B. Searles, in R.B. Searles & G.L. Leister (1980)
                 Genus Sphacelaria H.C. Lyngbye (1819)
                 Genus Sphacella J. Reinke (1890)
                 Genus Syringoderma T. Levring (1940)