Concise hierarchy

(Kingdom) Chromista - (Phylum) Ciliophora - (Class) Oligohymenophorea

Original position

Oligohymenophorea (Class) de Puytorac et al., 1974

Ref: T. Cavalier-Smith, 1993b: table 4 (p. 972).

Current position

Oligohymenophorea (Class) de Puytorac et al., 1974

Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 13).

Alternative positions

Ciliata (Class)	Ref: R.C. van Caenegem et al., 1979-1984: 1981.
Oligohymenophora (Class)	Ref: L. Margulis & K.V. Schwartz, 1998: 139.

Historical positions

Oligohymenophorea (Class) de Puytorac et al., 1974	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 13).
Oligohymenophorea (Class) de Puytorac et al., 1974	Ref: D.H. Lynn, 2008: 94.
Oligohymenophorea (Class) de Puytorac et al., 1974	Ref: E.E. Ruppert et al., 2004: 43.
Oligohymenophorea (Class) de Puytorac et al., 1974	Ref: D.H. Lynn & E.B. Small, 2000[2002]: 619.
Oligohymenophorea (Class) de Puytorac et al., 1974	Ref: 1998
Oligohymenophora (Class)	Ref: L. Margulis & K.V. Schwartz, 1998: 139.
Oligohymenophorea (Class) de Puytorac et al., 1974	Ref: T. Cavalier-Smith, 1993b: table 4 (p. 972). [new rank]

Number of Subtaxa

2024	Available in Systema Naturae 2000	2o;19f;82g;131s
1989-present	Systema Naturae 2000	[2o;19f;82g]
2015b	M.A. Ruggiero et al.: table 2 (p. 13)	[2o]
2008	D.H. Lynn	[2o]
2002	D. Lynn: 24 Apr 2002	[2o;19f;82g]
2000[2002]	D.H. Lynn & E.B. Small	2o;[19f;75g]