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Under construction
Monotypic taxon: Order Pirsoniales Caval.-Sm. (1998) (protist)
 Entity: 

Concise hierarchy

(Kingdom) Chromista - (Phylum) Pseudofungi - (Class) Hyphochytrea

Original position

Bicoecea (Class) Caval.-Sm. (1986)

Original entries

Pirsoniaceae (Family) Caval.-Sm. (1998)

Current position

Hyphochytrea (Class) Caval.-Sm. (1986), nom. inval. Ref: Kühn, Medlin & Eller, 2004: 144, 151; 17 Feb 2016 [indirect]

Alternative positions

Bicoecea (Class) Caval.-Sm. (1986) Ref: T. Cavalier-Smith, 1998: 255. [new taxon]
Bicosoecophyceae (Class) Loeblich III & Loeblich (1979), nom. nud. Ref: J. Kristiansen & H.R. Preisig, 2001: 4. [indirect]
Stramenopila ([unranked]) Ref: Kühn, Medlin & Eller, 2004: 144, 151 [implicit]

Historical positions

Bicosoecophyceae (Class) Loeblich III & Loeblich (1979), nom. nud. Ref: J. Kristiansen & H.R. Preisig, 2001: 4. [indirect]
Bicoecea (Class) Caval.-Sm. (1986) Ref: T. Cavalier-Smith, 1998: 255; 252. [new taxon]

Number of Subtaxa

2025 Available in Systema Naturae 2000 1f;1g
1989-present Systema Naturae 2000 1f;[1g]
2001 J. Kristiansen & H.R. Preisig [1g]
1998 T. Cavalier-Smith: 252 1f;[1g]
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Last updated: 21 Sep 2025