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Taxon: Genus "Geitleria" Friedmann 1955 nom. inval. (prokaryote)
 Entity: 

Authorship

SN2000 author citation:  Friedmann, 1955, nom. prok. post., nom. praeinit.
Subsequent use as a prokaryotic name:  Boone, D.R. & Castenholz, R.W. (eds.) 2001. In G.M. Garrity (ed.), Bergey's Man. Syst. Bacteriol. (ed. 2) 1: 591 (L. Hoffmann & R.W. Castenholz: key), 595 (L. Hoffmann & R.W. Castenholz: "Form-genus ... Friedmann 1955").

Eponymous persons

L. Geitler (1899 - 1990): Austrian botanist and specialist in cyanobacteria Ref: D.R. Boone & R.W. Castenholz, 2001: 595 (L. Hoffmann & R.W. Castenholz).

Attributes

Prokaryotic name, by subsequent use (: nom. prok. post.) [ICNB/ICNP] Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 7 Dec 2025.
Prokaryotic name (: nom. prok.) [ICNB/ICNP] Ref: D.R. Boone & R.W. Castenholz (eds.), 2001. In G.M. Garrity (ed.), Bergey's Man. Syst. Bacteriol. (ed. 2) 1: 595 (L. Hoffmann & R.W. Castenholz).
Effectively, but not validly, published name (nom. inval.) [ICNP, 2019: Rule 25, App. 7 (IJSEM)] Ref: G.M. Garrity et al. 2007. Taxon. Outl. Bacteria Archaea (v. 7.7, pt. 2): 49.
Pre-starting-point name (nom. inval.[: praeinit.]) [ICNP, 2022: Rule 30 (Cyanobacteria(ICN), <2021)] Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 7 Dec 2025.

Variants

Validly published name: Geitleria (Genus) Friedmann 1955 Ref: LPSN, 2020-present: [19 Jan 2026]; 19 Jan 2026. [inferred]
Name in original code of nomenclature: Geitleria (Genus) Friedmann (1955)
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Last updated: 28 Aug 2026