Concise hierarchy

(Kingdom) Chromista - (Phylum) Cryptista - (Class) Cryptomonadea

Current position

Cryptomonadea (Class) Stein, 1878

Ref: G. Novarino & I.A.N. Lucas, 1995

Alternative positions

flagellated protists ([unranked])	Ref: P. Kugrens et al., 2000: 1111.
Phytomastigophora (Class)	Ref: J.O. Corliss, 1982: 495. [invalid/synonym]
Phytomastigophorea (Subclass)	Ref: T.I. Storer et al., 1979: 355.
Phytomastigophorea (Class) Calkins, 1909	Ref: R.C. Brusca & G.J. Brusca, 1990

Historical positions

flagellated protists ([unranked])	Ref: P. Kugrens et al., 2000: 1111-1117.
Phytomastigophorea (Class) Calkins, 1909	Ref: 1998
Cryptomonadea (Class) Stein, 1878	Ref: G. Novarino & I.A.N. Lucas, 1995
Phytomastigophorea (Class) Calkins, 1909	Ref: R.C. Brusca & G.J. Brusca, 1990
Phytomastigophora (Class)	Ref: J.O. Corliss, 1982: 495. [invalid/synonym]
Phytomastigophorea (Subclass)	Ref: T.I. Storer et al., 1979: 355.

Number of Subtaxa

1989-present	Systema Naturae 2000	15g
2000	P. Kugrens et al.: 1112	15g
1995	G. Novarino & I.A.N. Lucas	2f