De klasse Rhodellophyceae T. Cavalier-Smith kent 3 orden.
| Dixioniellales Yokoyama, J.L.Scott, G.C.Zuccarello, M.Kajikawa, Y.Hara & J.A.West, Yokoyama, J.Scott, G.Zuccarello, M.Kajikawa, Y.Hara & J.West | Rhodellales H.S.Yoon, K.M.Müller, R.G.Sheath, F.D.Ott & D.Bhattacharya |
| Glaucosphaeeales E.C.Yang, J.L.Scott, H.S.Yoon & J.A.West |
