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Taxon: Class Actinobacteria Stackebrandt et al. 1997 nom. illeg. (prokaryote)

Entity:

Concise hierarchy

(Domain) Bacteria

Current position

Actinobacteria (Phylum) Goodfellow 2012 nom. inval.

Ref: J.P. Euzéby, 2016: [31 Aug 2017].

Alternative positions

Actinobacteria (Phylum) Margulis 1974

Ref: L. Margulis & K.V. Schwartz, 1982: 60.

Historical positions

*Actinobacteria* (Phylum) Garrity and Holt 2001	Ref: J.P. Euzéby, 2016: [31 Aug 2017].
*Actinobacteria* (Phylum) Garrity and Holt 2001	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 6).
*Bacteria* (Kingdom) Cavalier-Smith 1998 nom. inval.	Ref: P.M. Kirk et al., 2008: 8.
*Actinobacteria* (Phylum) Garrity and Holt 2001	Ref: G.M. Garrity et al., 2007: 399.
*Actinobacteria* (Phylum) Garrity and Holt 2001	Ref: G.M. Garrity et al., 2001b: 20. [new position]
*Actinobacteria* (Phylum) Garrity and Holt 2001	Ref: G.M. Garrity & J.G. Holt, 2001a: 163.
*Actinobacteria* (Phylum) Margulis 1974	Ref: L. Margulis & K.V. Schwartz, 1982: 60.

Number of Subtaxa

2026	Available in Systema Naturae 2000	†1g
1989-present	Systema Naturae 2000	8o;52f;242g;2009s;107ss
2016	J.P. Euzéby: [7 Sep 2017]	[9o;45f;345g]
2015b	M.A. Ruggiero et al.: table 2 (p. 6)	[10o]
2007	G.M. Garrity et al.	[6o;46f;192g;1683s;113ss]
2001b	G.M. Garrity et al.: 23	[6o;44f;139g]
2001a	G.M. Garrity & J.G. Holt: 165	[6o;39f;130g]
2000		6o39f130g
1982	L. Margulis & K.V. Schwartz	6f

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Last updated: 28 Aug 2026