Concise hierarchy

(Kingdom) Chromista - (Phylum) Ochrophyta

Current position

Diatomea ([unranked]) Kütz. (1844)

Ref: S.M. Adl et al., 2012: table 2 (p. 459). [inferred rank] [implicit]

Alternative positions

Bacillariophyta (Phylum) Engl. & Gilg (1924)
Bacillariophyta (Division) Engl. & Gilg (1924)	Ref: F.E. Round et al., 1990: 125.
Bacillariophytina (Subdivision) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin & I. Kaczmarska, 2004: 267. [emended diagnosis]
Bacillariophytina (Subphylum) Medlin & Kaczmarska (2004)	Ref: S.M. Adl et al., 2012: table 2 (p. 459). [inferred rank]
Chromophycota (Division)	Ref: R. Ross, 1982: 95.
Chromophyta (Division) Christensen (1962)	Ref: F. Weberling & H.O. Schwantes, 1972: 225.
Chrysophyta (Division)	Ref: L.J. Audus & V. Heywood, 1981: 10.
Diatomeae (Subphylum) Caval.-Sm. (1995)	[indirect]
Heterokontophyta (Phylum) Moestrup (1992)	Ref: E.J. van Nieukerken et al., 2010: 81.
Khakista (Subphylum) Caval.-Sm. (2000)	Ref: M.A. Harper et al., 2012: 147.
Ochrophyta (Phylum) Caval.-Sm. (1995)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 16).

Subsequent entries

Bacillariophycidae (Subclass) D.G. Mann (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125)
Eunotiophycidae (Subclass) D.G. Mann (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125)
Urneidophycidae (Subclass) Medlin (2016)		Ref: L.K. Medlin, 2016: table 2 (p. 115)

Historical positions

Bacillariophytina (Subdivision) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin, 2016: 122, table 2 (p. 115), table 3 (p. 117), fig. 4.
Bacillariophytina (Subphylum) Medlin & Kaczmarska (2004)	Ref: S.M. Adl et al., 2012: table 2 (p. 459). [inferred rank]
Heterokontophyta (Phylum) Moestrup (1992)	Ref: E.J. van Nieukerken et al., 2010: 81.
Bacillariophytina (Subphylum) Medlin & Kaczmarska (2004)	Ref: S.M. Adl et al., 2005: 432-433.
Bacillariophytina (Subdivision) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin & I. Kaczmarska, 2004: 267. [emended diagnosis]
Eukaryota ([unranked]) (Chatton, 1925)	Ref: T. Koray, 2001: 17. [rough position]
Bacillariophyta (Division) Engl. & Gilg (1924)	Ref: F.E. Round et al., 1990: 125, 128, App. I (p. 651). [emended diagnosis]
Bacillariophyta (Phylum) Engl. & Gilg (1924)	Ref: F.E. Round et al., 1990: xiv, 588, 591.
Chromophycota (Division)	Ref: R. Ross, 1982: 95.
Chrysophyta (Division)	Ref: L.J. Audus & V. Heywood, 1981: 10.
Chromophyta (Division) Christensen (1962)	Ref: F. Weberling & H.O. Schwantes, 1972: 225.

Number of Subtaxa

2023	Available in Systema Naturae 2000	22o;51f;202g;1979s;7ss;507v
1989-present	Systema Naturae 2000: 26 Mar 2016	[22o;51f]
2004	L.K. Medlin & I. Kaczmarska: 267	[17o]
1990	F.E. Round et al.	[2sc;11o;37f]
1990	F.E. Round et al.	[11o;37f]
1982	S.P. Parker	2o;[23f;>217g]
1982	R. Ross	2o[23f>217g]
1981	L.J. Audus & V. Heywood	~250s