Concise hierarchy

(Kingdom) Chromista

Original position

Sarcomastigota (Infrakingdom) Cavalier-Smith, 1983

Original entries

Endomyxa (Subphylum) T. Cavalier-Smith, 2002
Filosa (Subphylum) T. Cavalier-Smith & E.E.-Y. Chao, 2003

Subsequent entries

Monadofilosa (Subphylum) Cavalier-Smith, 1997		Ref: T. Cavalier-Smith, 1998: 232. [assumed]
Phytomyxa (Subphylum) Cavalier-Smith, 1997		Ref: T. Cavalier-Smith, 1998: 232. [assumed]
Reticulofilosa (Subphylum) Cavalier-Smith, 1997		Ref: T. Cavalier-Smith, 1998: 232. [assumed]

Current position

Rhizaria (Infrakingdom) Cavalier-Smith, 2002

Ref: T. Cavalier-Smith et al., 2015: table 1 (p. 344).

Alternative positions

Chromista (Kingdom) Caval.-Sm. (1981)	Ref: O. Bánki et al., 2023: 17 Aug 2023.
Protozoa (Kingdom) Goldfuss, 1818	Ref: P.M. Kirk et al., 2008: 760.
Rhizaria ([unranked]) Cavalier-Smith, 2002	Ref: E.J. van Nieukerken, 2010: 93.
Sarcomastigota (Infrakingdom) Cavalier-Smith, 1983	Ref: T. Cavalier-Smith, 1998: 232. [new taxon]

Historical positions

Chromista (Kingdom) Caval.-Sm. (1981)	Ref: T. Rees et al., 2020: table 2 (p. 129).
Rhizaria (Infrakingdom) Cavalier-Smith, 2002	Ref: T. Cavalier-Smith et al., 2015: table 1 (p. 344).
Rhizaria (Infrakingdom) Cavalier-Smith, 2002	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 19).
Rhizaria (Infrakingdom) Cavalier-Smith, 2002	Ref: T. Cavalier-Smith, 2010a: 342.
Rhizaria ([unranked]) Cavalier-Smith, 2002	Ref: E.J. van Nieukerken, 2010: 93.
Protozoa (Kingdom) Goldfuss, 1818	Ref: P.M. Kirk et al., 2008: 760.
Rhizaria (Infrakingdom) Cavalier-Smith, 2002	Ref: T. Cavalier-Smith, 2004: 1252.
Rhizaria (Infrakingdom) Cavalier-Smith, 2002	Ref: T. Cavalier-Smith, 2002b: 326.
Protozoa (Kingdom) Goldfuss, 1818	Ref: P.M. Kirk et al., 2001: 652. [alternative name]
Sarcomastigota (Infrakingdom) Cavalier-Smith, 1983	Ref: T. Cavalier-Smith, 1998: table 3 (p. 232). [new taxon]

Number of Subtaxa

2024	Available in Systema Naturae 2000	11c;44o;76f;181g;172s
1989-present	Systema Naturae 2000: 22 Dec 2023	[11c;43o]
2020	T. Rees et al.: table 2 (p. 129)	362*ng;275[-302]*g; †6.2%g
2015b	M.A. Ruggiero et al.: table 2 (p. 21)	[11c;39o]
2008	P.M. Kirk et al.: 760	1c;1o;2f;15g;50s
2003	T. Cavalier-Smith & E.E.-Y. Chao	2sp;9c;17o
2002b	T. Cavalier-Smith	[3sp]
1998	T. Cavalier-Smith	[3sp]