Concise hierarchy

(Kingdom) Bacillati - (Phylum) Bacillota - (Class) Bacilli - (Order) Caryophanales - (Family) Bacillaceae

Subsequent positions

Aeroendospora (Phylum) Margulis and Schwartz 1982 nom. ined.

Ref: L. Margulis & K.V. Schwartz, 1982: 50. [assumed]

Current position

Bacillaceae (Family) Fischer 1895 (Approved Lists 1980)

Ref: G.M. Garrity et al., 2007: 333; LPSN[14 Dec 2025].

Alternative positions

Aeroendospora (Phylum) Margulis and Schwartz 1982 nom. ined.	Ref: L. Margulis & K.V. Schwartz, 1982: 50. [rough position]
Clostridea (Class) Cavalier-Smith 1982	Ref: T. Cavalier-Smith, 1998: 219. [rough position]
Endospora (Phylum)	Ref: L. Margulis & K.V. Schwartz, 1998: 92. [rough position]

Historical positions

Bacillaceae (Family) Fischer 1895 (Approved Lists 1980)	Ref: J.P. Euzéby, 2016: [8 Sep 2017]. [available name]
Bacillaceae (Family) Fischer 1895 (Approved Lists 1980)	Ref: G.M. Garrity et al., 2007: 333.
Bacillaceae (Family) Fischer 1895 (Approved Lists 1980)	Ref: G.M. Garrity et al., 2001b: 18.
Bacillaceae (Family) Fischer 1895 (Approved Lists 1980)	Ref: G.M. Garrity & J.G. Holt, 2001a: 162.
Endospora (Phylum)	Ref: L. Margulis & K.V. Schwartz, 1998: 92, 93. [rough position]
Clostridea (Class) Cavalier-Smith 1982	Ref: T. Cavalier-Smith, 1998: table 2 (p. 219). [rough position]
Aeroendospora (Phylum) Margulis and Schwartz 1982 nom. ined.	Ref: L. Margulis & K.V. Schwartz, 1982: 50. [rough position]
Bacillaceae (Family) Fischer 1895 (Approved Lists 1980)	Ref: J.O. Corliss, 1982: 36.

Number of Subtaxa

2026	Available in Systema Naturae 2000	200s;5ss
1989-present	Systema Naturae 2000: 23 Jul 2015	[200s;5ss]
2007	G.M. Garrity et al.	[134s;2ss]
1982	L. Margulis & K.V. Schwartz	50s