Class Cryptophyceae Pascher ex Schoenichen (1925) see Class Cryptophyceae F.E. Fritsch (1927) Order Goniomonadales Novarino & Lucas (1993) Family Cyathomonadaceae E.G. Pringsheim (1944) see Family Goniomonadaceae D.R.A. Hill, in Patterson & Larsen (1991)