Class Phaeophyceae (brown algae)
Synonym: Phaeophyta
Parent taxon: Ochrophyta according to M. A. Ruggiero et al. 2015
See also Guiry and Guiry 2021, Margulis 1996 and Taylor et al. 2008
Sister taxa: Archaeomonas, Bacillariophyceae, Dictyochophyceae, Periptera, Biddulphiaceae, Dossetia, Bacillariophytina, Cymatogonia, Macrora, Cosmiodiscus, Stephanogonia, Bruniopsis, Pleurosigma, Clavicula, Mediaria, Triceratiaceae, Discoideae, Xanthophyceae
Subtaxa: Algites Chordites Ectocarpales Ectocarpus Fucales Fucus Laminariales Limnophycus Permopadina Staurofucus
Ecology: "photoautotroph"