De subdivisie Proteorhodophytina Muñoz-Gómez, Mejía-Franco, Durnin, Colp, Grisdale, J.M.Archibald & Slamovits kent 4 klassen.
| Compsopogonophyceae G.W.Saunders & Hommersand | Rhodellophyceae Cavalier-Smith |
| Porphyridiophyceae M.Shameel | Stylonematophyceae H.S.Yoon, K.M.Müller, R.G.Sheath, F.D.Ott & D.Bhattacharya |
