Phylogeny

Paraphyletic/Ancestral (para)

Ref: T. Cavalier-Smith, 1998: 208.

Original entries

Unibacteria (Subkingdom) Cavalier-Smith 1998

Current position

Prokaryota (Empire) (Dougherty 1957) Allsopp 1969

Ref: T. Cavalier-Smith, 1998: 218.

Alternative positions

Prokarya (Superkingdom)	Ref: R.S.K. Barnes, 2002: 3.
Prokaryota (Domain)	Ref: P.M. Kirk et al., 2008: 248.

Historical positions

Prokaryota (Domain)	Ref: P.M. Kirk et al., 2008: 248.
Prokarya (Superkingdom)	Ref: R.S.K. Barnes, 2002: 3.
Prokaryota (Domain)	Ref: P.M. Kirk et al., 2001: 186, 403.
Prokarya (Superkingdom)	Ref: L. Margulis & K.V. Schwartz, 1998: 16, 39-54.
Prokaryota (Empire) (Dougherty 1957) Allsopp 1969	Ref: T. Cavalier-Smith, 1998: table 1 (p. 208), table 2 (p. 218); 223.

Number of Subtaxa

1989-present	Systema Naturae 2000	[2sk;8p]
2004	T. Cavalier-Smith: 1252	[2sk;8p]
2002	R.S.K. Barnes	[2sk]
1998	L. Margulis & K.V. Schwartz	[14p]10,000s
1998	T. Cavalier-Smith	2sk;10p