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Monotypic taxon: Genus Microcyclus Ørskov 1928 (Approved Lists 1980) nom. illeg. (prokaryote)
 Entity: 

Authorship

SN2000 author citation:  Ørskov, 1928/1980, nom. approb., nom. praeocc.

Attributes

Approved name (Approved Lists: nom. approb.) [ICNP, 2019: Rules 24a, 33b] Ref: Approved Lists, 1980.
Later homonym (nom. illeg.[: praeocc.]) [ICNP, 2019: Rule 51b(4) (<2001: prokaryotes/fungi/algae/protozoa/viruses)] Ref: J.P. Euzéby, present. List of Bacterial names with Standing in Nomenclature: [8 Mar 2015]. [fungi]; LPSN[30 Nov 2025].

Types

Type, by monotypy: Microcyclus aquaticus Ørskov 1928 (Approved Lists 1980) comb. illeg.

Homonyms

Senior homonym (allowed): †Microcyclus (Genus) Meek & Worthen, 1868 Ref: S.J. Brands (comp.), 1989-present: 25 Aug 2020.
Senior homonym (allowed): Microcyclus (Subgenus) Simroth, 1896, nom. illeg. Ref: S.J. Brands (comp.), 1989-present: 1 Dec 2021.
Senior homonym: Microcyclus (Genus) Sacc. (1904) Ref: J.P. Euzéby, present: [8 Mar 2015].

Synonyms

Accepted name (objective): Ancylobacter (Genus) Raj 1983 Ref: G.M. Garrity et al., 2007: 106.
Replacement name: Ancylobacter (Genus) Raj 1983 Ref: LPSN, 2020-present: [30 Aug 2021].
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Last updated: 28 Aug 2026