Concise hierarchy

(Kingdom) Chromista - (Phylum) Ochrophyta - (Class) Raphidophyceae - (Order) Actinophryida

Subsequent positions

Actinosphaeridae (Family) Schulze, 1877		Ref: F.E. Schulze, 1877: 27.
Actinosphaeriidae (Family) Schulze, 1877		Ref: T. Cavalier-Smith & J.M. Scoble, 2013(2012): 342.

Current position

Actinosphaeriidae (Family) Schulze, 1877

Ref: T. Cavalier-Smith & J.M. Scoble, 2013(2012): 342. [new position]

Alternative positions

Actinophrydia (Suborder)	Ref: I. Eibl-Eibesfeldt et al., 1975 (1971): 585. [inferred name]
Actinophryidae (Family) Dujardin, 1841	Ref: S.M. Adl et al., 2005: 426.
actinophryids ([unranked])	Ref: D.J. Patterson, 1999: S102.
Actinosphaeridae (Family) Schulze, 1877	Ref: F.E. Schulze, 1877: 27. [new position]

Historical positions

Actinophryidae (Family) Dujardin, 1841	Ref: S.M. Adl et al., 2005: 426.
Actinophryidae (Family) Dujardin, 1841	Ref: K.A. Mikrjukov & D.J. Patterson, 2001: 8, 12-13, 17.
Actinophrys (Genus) Ehrenberg, 1832[1830]	Ref: D.J. Patterson, 2001: 21.
Actinophryidae (Family) Dujardin, 1841	Ref: K.A. Mikrjukov et al., 2000: 866.
actinophryids ([unranked])	Ref: D.J. Patterson, 1999: S102.
Nucleohelea (Class) Cavalier-Smith, 1993	Ref: T. Cavalier-Smith, 1993b: 988. [rough position]
Heliozoa (Class)	Ref: R.C. Brusca & G.J. Brusca, 1990
Actinopoda (Phylum) Calkins, 1902	Ref: L. Margulis & K.V. Schwartz, 1982: 104. [rough position]
Centroaxoplastidiata (Tribe)	Ref: S.P. Parker, 1982: pl.56.
Heliozoa (Order)	Ref: T.I. Storer et al., 1979 [rough position]
Actinophrydia (Suborder)	Ref: I. Eibl-Eibesfeldt et al., 1975 (1971): 585. [inferred name]

Number of Subtaxa

2025	Available in Systema Naturae 2000	3s
1989-present	Systema Naturae 2000: 22 Mar 2016	[3s]
2001	K.A. Mikrjukov & D.J. Patterson	[3s]