Die Süsswasser-Flora Deutschlands, Österreichs und der Schweiz Haeckel (1866) - plants
   [Division] Flagellatae [polyphyletic]
     [Class] Cryptomonadinae Pascher ex Schoenichen (1925), orth. inval. [monotypic] see Class Cryptomonadophyceae Pascher ex Schoenichen (1925)
       [Order] Cryptomonadales Pascher (1913)
         Family Cryptomonadaceae Ehrenb. (1831)
           [Tribe] Cryptomonadeae Pascher (1913)
             1 [Subtribe] Cryptomonadae Pascher (1913), orth. inval. [monotypic]
             2 [Subtribe] Chilomonadae