| Subsequent rank (orig. spell.) | : | |
Cavalier-Smith, T. 1989[1990]. In J.C. Green, B.S.C. Leadbeater & W.L. Diver (eds.), The Chromophyte Algae: Problems and Perspectives, Systematics Association Special Volume, No. 38. Clarendon Press, Oxford: App. (p. 404: "Subphylum ... subdivisio nova"). ≡
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