Concise hierarchy

(Kingdom) Chromista

Subsequent positions

Cryptista (Infrakingdom) Caval.-Sm. (1989)		Ref: T. Cavalier-Smith, 1993b: table 2 (p. 961).
Hacrobia (Subkingdom) Okamoto, Chantangsi, Horák, Leander & Keeling, 2009		Ref: T. Cavalier-Smith, 2010a: fig. 1.

Subsequent entries

Cryptomonada (Subphylum) Caval.-Sm. (2004)		Ref: T. Cavalier-Smith, 2004: table 4.1 (p. 77).
Goniomonadea (Class) Caval.-Sm. (1993)		Ref: T. Cavalier-Smith, 1993b: table 2 (p. 961).
Leucocrypta (Subphylum) Caval.-Sm. (2004)		Ref: T. Cavalier-Smith, 2004: table 4.1 (p. 77).

Current position

Hacrobia (Subkingdom) Okamoto, Chantangsi, Horák, Leander & Keeling, 2009

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

Alternative positions

Chromista (Kingdom) Caval.-Sm. (1981)	Ref: O. Bánki et al., 2023: 17 Aug 2023.
Cryptista (Kingdom) Caval.-Sm. (1986)	Ref: T. Cavalier-Smith, 1995: table (p. 1014).
Cryptista (Subkingdom) Caval.-Sm. (1986)	Ref: T. Cavalier-Smith, 2004: 1252.
Cryptista (Infrakingdom) Caval.-Sm. (1989)	Ref: T. Cavalier-Smith, 1993b: table 2 (p. 961). [new position]
Euchromista (Subkingdom) Cavalier-Sm. (1993)	Ref: T. Cavalier-Smith et al., 1994: 11368.

Historical positions

Hacrobia (Subkingdom) Okamoto, Chantangsi, Horák, Leander & Keeling, 2009	Ref: T. Cavalier-Smith, 2022(2021): App. (p. 582), fig. 11. [emended diagnosis]
Chromista (Kingdom) Caval.-Sm. (1981)	Ref: T. Rees et al., 2020: table 2 (p. 129).
Hacrobia (Subkingdom) Okamoto, Chantangsi, Horák, Leander & Keeling, 2009	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 11).
Hacrobia (Subkingdom) Okamoto, Chantangsi, Horák, Leander & Keeling, 2009	Ref: T. Cavalier-Smith, 2010a: fig. 1. [new position]
Cryptista (Subkingdom) Caval.-Sm. (1986)	Ref: T. Cavalier-Smith, 2004: table 4.1 (p. 77), fig. 4.1. [emended diagnosis]
Cryptista (Subkingdom) Caval.-Sm. (1986)	Ref: T. Cavalier-Smith, 2004: 1252.
Cryptista (Kingdom) Caval.-Sm. (1986)	Ref: T. Cavalier-Smith, 1995: table (p. 1014).
Cryptista (Infrakingdom) Caval.-Sm. (1989)	Ref: T. Cavalier-Smith, 1993b: table 2 (p. 961). [new position]

Number of Subtaxa

2024	Available in Systema Naturae 2000	1g
1989-present	Systema Naturae 2000: 17 Sep 2015	[7c;9o]
2020	T. Rees et al.: table 2 (p. 129)	65ng;47[-50]g; †0g
2004	T. Cavalier-Smith: table 4.1 (p. 77)	[3c]
1994	T. Cavalier-Smith et al.: 11368	2c
1993b	T. Cavalier-Smith: table 2 (p. 961)	[2c]