Concise hierarchy

(Kingdom) Chromista - (Phylum) Cercozoa - (Class) Thecofilosea

Subsequent positions

Thecofilosea (Class) T. Cavalier-Smith & E.E.-Y. Chao, 2003

Ref: T. Cavalier-Smith & E.E.-Y. Chao, 2003 [assumed]

Current position

Eothecia (Subclass)

Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 20).

Alternative positions

Phaeodaria (Subclass) Haeckel, 1879	Ref: S. Ota, 2011: 2.
Thecofilosea (Class) T. Cavalier-Smith & E.E.-Y. Chao, 2003	Ref: T. Cavalier-Smith & E.E.-Y. Chao, 2003 [new position]
Thecomonadea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1995: table (p. 1013).
Thecomonadia (Subclass) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1993b: table 4 (p. 970).

Historical positions

Eothecia (Subclass)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 20).
Thecofilosea (Class) T. Cavalier-Smith & E.E.-Y. Chao, 2003	Ref: T. Cavalier-Smith & E.E.-Y. Chao, 2003 [new position]
Thecomonadea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1995: table (p. 1013).
Thecomonadia (Subclass) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1993b: table 4 (p. 970).

Number of Subtaxa

2024	Available in Systema Naturae 2000	2f;2g
2011	S. Ota: 2	[2f]
1993b	T. Cavalier-Smith: table 4 (p. 970)	[1g]