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Polyphyletic taxon:
Group †
Acritarcha
Evitt, 1963
- acritarchs
(protozoan)
Taxa
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Hierarchy
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Entity:
protists
..algal protists
..†Algospongia (Class)
..amoeboid protists
..†Calcitarcha (Group) - calcispheres
..free-living heterotrophic flagellates
..Meteora (Genus)
..nature uncertain
..parasitic protists
..†Acritarcha (Group) - acritarchs
....†Acanthomorphitidae (Family)
....†Ammonidium (Genus)
....†Baltisphaeridium (Genus)
....†Buedingiisphaeridium (Genus)
....†Carminella (Genus)
....†Comasphaeridium (Genus)
....†Cymbosphaeridium (Genus)
....†Dateriocradus (Genus)
....†Diexallophasis (Genus)
....†Dilatisphaera (Genus)
....†Dorsennidium (Genus)
....†Eisenackidium (Genus)
....†Estiastra (Genus)
....†Eupoikilofusa (Genus)
....†Gorgonisphaeridium (Genus)
....†Hapsidopalla (Genus)
....†Helosphaeridium (Genus)
....†Herkomorphitae
....†Hoegklintia (Genus)
....†Leiofusa (Genus)
....†Leoniella (Genus)
....†Leptobrachion (Genus)
....†Lophosphaeridium (Genus)
....†Micrhystridium (Genus)
....†Multiplicisphaeridium (Genus)
....†Neoveryhachium (Genus)
....†Onondagella (Genus)
....†Oppilatala (Genus)
....†Ozotobrachion (Genus)
....†Percultisphaera (Genus)
....†Peteinosphaeridium (Genus)
....†Polygonomorphitae (Subgroup)
....†Psenotopus (Genus)
....†Pseudofromea (Genus)
....†Pteromorphitae
....†Pulvinosphaeridium (Genus)
....†Salopidium (Genus)
....†Schismatosphaeridium (Genus)
....†Tunisphaeridium (Genus)
....†Tylotopalla (Genus)
....†Veryhachium (Genus)
....†Visbysphaera (Genus)
Concise hierarchy
(Kingdom)
protists
Phylogeny
Questionably Polyphyletic (poly)
Ref:
G. Mullins et al., 2002
: 20/11/2004.
Original entries
†
Tunisphaeridium
(Genus)
J. Deunff & W.R. Evitt, 1968
Current position
protists
(Kingdom)
Ref:
G. Mullins et al., 2002
: 20 Nov 2004.
[indirect]
Alternative positions
Algae
([unranked])
Ref:
T.N. Taylor et al., 2009
: App. 1 (p. 1027).
[inferred rank]
Historical positions
Algae
([unranked])
Ref:
T.N. Taylor et al., 2009
: 158-160, table (p. 123), App. 1 (p. 1027).
Protozoa
([unranked])
Goldfuss, 1818
Ref:
1998
Protozoa
([unranked])
Goldfuss, 1818
Ref:
1995
Number of Subtaxa
2024
Available in Systema Naturae 2000
†3f;39g;86s;6ss
1989-present
Systema Naturae 2000
†7000s
©2004-2024 Universal Taxonomic Services
Last updated:
1 Feb 2024