Class Cryptomonadea Stein, 1878 see Superclass Cryptomonada Cavalier-Smith, 2004 Order Cryptomonadida Senn, 1900 - cryptomonads see Order Cryptomonadales Pascher (1913) 1 Family Cryptomonadidae Ehrenberg, 1831 see Family Cryptomonadaceae Ehrenb. (1831) 2 Family Hemiselmidae see Family Hemiselmidaceae Butcher (1967)