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 Xanthophyceae P. Allorge ex Fritsch (1935) - yellow-green algae 1 Order Vaucheriales Bohlin (1901)