Concise hierarchy

(Kingdom) Pseudomonadati - (Phylum) Aquificota - (Class) Aquificia - (Order) Aquificales - (Family) Aquificaceae

Subsequent positions

Aquificaceae (Family) Reysenbach 2001 nom. inval.

Ref: A.-L. Reysenbach, 2001: 360. [assumed]

Current position

Aquificaceae (Family) Reysenbach 2002

Ref: G.M. Garrity et al., 2007: 32; LPSN[7 Apr 2026].

Alternative positions

Aquificaceae (Family) Reysenbach 2001 nom. inval.	Ref: A.-L. Reysenbach, 2001: 360. [new position]
Thermotogae (Phylum) Margulis and Schwartz 1998 nom. ined.	Ref: L. Margulis & K.V. Schwartz, 1998: 102. [rough position]
Togobacteria (Subphylum) Cavalier-Smith 1998	Ref: T. Cavalier-Smith, 1998: 219. [rough position]

Historical positions

Aquificaceae (Family) Reysenbach 2002	Ref: J.P. Euzéby, 2016: [7 Sep 2017]. [available name]
Aquificaceae (Family) Reysenbach 2002	Ref: G.M. Garrity et al., 2007: 32.
Aquificaceae (Family) Reysenbach 2001 nom. inval.	Ref: G.M. Garrity et al., 2001b: 3. [new position]
Aquificaceae (Family) Reysenbach 2001 nom. inval.	Ref: A.-L. Reysenbach, 2001: 360; xv. [new position]
Aquificaceae (Family) Reysenbach 2001 nom. inval.	Ref: G.M. Garrity & J.G. Holt, 2001a: [156]. [new position]
Thermotogae (Phylum) Margulis and Schwartz 1998 nom. ined.	Ref: L. Margulis & K.V. Schwartz, 1998: 102. [rough position]
Togobacteria (Subphylum) Cavalier-Smith 1998	Ref: T. Cavalier-Smith, 1998: table 2 (p. 219). [rough position]

Number of Subtaxa

2026	Available in Systema Naturae 2000	1s
1989-present	Systema Naturae 2000	[1s]
2007	G.M. Garrity et al.	[1s]