Concise hierarchy

(Domain) Eukaryota - (Phylum) Metamonada - (Class) Trichonymphea

Subsequent positions

Trichonymphea (Class) Hartmann, 1911

Ref: T. Cavalier-Smith, 2003: table 1 (p. 1746).

Current position

Trichonymphea (Class) Hartmann, 1911

Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 9).

Alternative positions

Hypermastigea (Class) Grassi, 1911	Ref: T. Cavalier-Smith, 1995: table (p. 1012).
Hypermastigia (Class)	Ref: G. Brugerolle & J.J. Lee, 2000: 1232.

Historical positions

Trichonymphea (Class) Hartmann, 1911	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 9).
Trichonymphea (Class) Hartmann, 1911	Ref: T. Cavalier-Smith, 2013(2012): table 1 (p. 122).
Trichonymphea (Class) Hartmann, 1911	Ref: I. Cepicka et al., 2010: 426, table 1 (p. 421).
Trichonymphea (Class) Hartmann, 1911	Ref: T. Cavalier-Smith, 2003: 1746. [new position]
Hypermastigia (Class)	Ref: G. Brugerolle & J.J. Lee, 2000: 1232-1233; 1224.
Hypermastigea (Class) Grassi, 1911	Ref: T. Cavalier-Smith, 1995: table (p. 1012).
Hypermastigea (Class) Grassi, 1911	Ref: T. Cavalier-Smith, 1993b: table 4 (p. 970).

Number of Subtaxa

2025	Available in Systema Naturae 2000	5f;15g;14s
1989-present	Systema Naturae 2000	5f;15g
2013(2012)	T. Cavalier-Smith: table 1 (p. 122)	[5f]
2010	I. Cepicka et al.: 426	5f;[16g]
2000	G. Brugerolle & J.J. Lee	6f;(15g)