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, Xanthophyceae, Pleurosigma, Bacillariophytina, Clavicula, Dossetia, Discoideae, Periptera, Triceratiaceae, Cosmiodiscus, Cymatogonia, Stephanogonia, Macrora, Biddulphiaceae, Mediaria, Bruniopsis
Subtaxa: Algites Chordites Ectocarpales Ectocarpus Fucales Fucus Laminariales Limnophycus Permopadina Staurofucus
Ecology: "photoautotroph"