organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Eukaryota Chatton, 1925 - eukaryotes Algae Phylum Heterokontophyta Moestrup (1992) - heterokonts see Phylum Ochrophyta Caval.-Sm. (1995) Class Phaeophyceae Hansgirg (1886) - brown algae Order Laminariales Migula (1908)