Concise hierarchy

(Domain) Eukaryota - (Phylum) Metamonada - (Class) Eopharyngea

Phylogeny

Holophyletic

Original position

Trepomonadea (Class) Cavalier-Smith, 1993

Ref: T. Cavalier-Smith, 1993b: table 3 (p. 963).

Subsequent positions

Eopharyngea (Class) Cavalier-Smith, 1993

Ref: T. Cavalier-Smith, 2013(2012): table 1 (p. 122).

Subsequent entries

Distomatina (Suborder) Senn, 1900		Ref: T. Cavalier-Smith, 2013(2012): table 1 (p. 122).
Giardiina (Suborder) Cavalier-Smith, 1996		Ref: T. Cavalier-Smith, 2013(2012): table 1 (p. 122).

Current position

Eopharyngea (Class) Cavalier-Smith, 1993

Ref: T. Cavalier-Smith, 2022(2021): table 1 (p. 520).

Alternative positions

Anaxostylea (Class)
diplomonads (Class)	Ref: R.C. Brusca & G.J. Brusca, 1990 [indirect]
flagellated protists ([unranked])	Ref: G. Brugerolle & J.J. Lee, 2000: 1125.
Trepomonadea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1995: table (p. 1012).
Zoomastigophora (Class)	Ref: K. Vickerman, 1982: 499.
Zoomastigophorea (Class)	Ref: R.C. Brusca & G.J. Brusca, 1990
Zoomastigophorea (Subclass)	Ref: T.I. Storer et al., 1979: 355.

Historical positions

Eopharyngea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 2022(2021): table 1 (p. 520).
Eopharyngea (Class) Cavalier-Smith, 1993	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 8).
Eopharyngea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 2013(2012): table 1 (p. 122). [new position]
flagellated protists ([unranked])	Ref: G. Brugerolle & J.J. Lee, 2000: 1125-1126, 1129.
Zoomastigophorea (Class)	Ref: 1998
Trepomonadea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1995: table (p. 1012).
Trepomonadea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1993b: table 3 (p. 963). [new rank]
Zoomastigophorea (Class)	Ref: R.C. Brusca & G.J. Brusca, 1990
Zoomastigophora (Class)	Ref: K. Vickerman, 1982: 499-500.
Zoomastigophorea (Subclass)	Ref: T.I. Storer et al., 1979: 355.

Number of Subtaxa

2024	Available in Systema Naturae 2000	5f;8g;15s
1989-present	Systema Naturae 2000: 23 Sep 2015	[5f;8g]
2013(2012)	T. Cavalier-Smith: table 1 (p. 122)	[5f;8g]
2000	G. Brugerolle & J.J. Lee: 1126	2so;(2f;11g)
2000	G. Brugerolle & J.J. Lee: 1126	2so;(2f;11g)
1997	TAMU	8g
1982	K. Vickerman	2f[10g]