organisms
see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Kingdom Protoctista Hogg, 1860
Phylum Xanthophyta Allorge, in Fritsch (1935)
see Class Xanthophyceae P. Allorge ex Fritsch (1935)
Class Heterotrichales
see Order Tribonematales Pascher (1939)
Genus Heterodendron Steinecke, 818,