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 Ectocarpales Bessey (1907) Family Ectocarpaceae C.Agardh (1828) Genus Giffordia E.A. Batters (1893)