Class Cryptophyceae Pascher ex Schoenichen (1925) see Class Cryptophyceae F.E. Fritsch (1927)
   Order Pyrenomonadales G. Novarino & I.A.N. Lucas (1993) see Order Cryptomonadales Pascher (1913)
     Family Pyrenomonadaceae G. Novarino & I.A.N. Lucas (1993)
       Genus Rhinomonas D.R.A. Hill & R. Wetherbee (1988)