Invalid subtaxa: Bacillariophyta Engler and Gilg 1924 [replaced name], Heterokontophyta [objective synonym]
Full reference: T. Cavalier-Smith. 1995. Membrane heredity, symbiogenesis, and the multiple origins of algae. Biodiversity and evolution 75-114
Parent taxon: Protista according to W. Kiessling 2004
See also Cavalier-Smith 1986, Cavalier-Smith 1995, Margulis 1996 and Taylor et al. 2008
Sister taxa: Actinopoda, Ambonosphaera, Chrysophyta, Dapcodinium, Dichadogonyaulax, Mendicodinium, Palaeopascichnus, Paragonyaulacysta, Prasinophyta
Subtaxa: Archaeomonas Bacillariophyceae Bacillariophytina Biddulphiaceae Bruniopsis Clavicula Cosmiodiscus Cymatogonia Dictyochophyceae Discoideae Dossetia Macrora Mediaria Periptera Phaeophyceae Pleurosigma Stephanogonia Triceratiaceae Xanthophyceae