Name: "Candidatus Korarchaeota" Ludwig and Klenk 2001

Category: Phylum

Proposed as: Candidatus

Etymology: Kor.ar.chae.o’ta. N.L. neut. n. Korarchaeum, a Candidatus genus name; L. neut. pl. n. suff. -ota, ending to denote a phylum; N.L. neut. pl. n. Korarchaeota, the Candidatus Korarchaeum phylum

Pronunciation (Latin), gender: kor-ar-k^ha͡e-O-ta, neuter

Type genus: "Candidatus Korarchaeum" Elkins et al. 2008

Effective publication: Ludwig W, Klenk HP. Overview: a phylogenetic backbone and taxonomic framework for procaryotic systematics. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1., Springer, New York, 2001, p. 213-235. 🇺🇸

IJSEM list: Oren A, Göker M. Candidatus list no. 5. Lists of names of prokaryotic Candidatus taxa. Int J Syst Evol Microbiol 2023; 73:5821.

Nomenclatural status: not validly published

Nomenclatural pro-status: pro-validly published under the ICNP

Taxonomic status: synonym

Correct name: Thermoproteota Garrity and Holt 2021

• Synonyms:

  • Name	Kind
    "Thermoproteobacteria" Shetty et al. 2025	heterotypic synonym, not validly published
    "Nitrososphaerota" Whitman et al. 2018	heterotypic synonym, not validly published
    "Crenarchaeota" Garrity and Holt 2001	heterotypic synonym, not validly published
    "Candidatus Methanomethylicota" corrig. Vanwonterghem et al. 2016	heterotypic synonym, pro-validly published under the ICNP
    "Thermoproteota" Whitman et al. 2018	heterotypic synonym, not validly published
    Thermoproteota Garrity and Holt 2021	heterotypic synonym, validly published under the ICNP
    "Candidatus Thaumarchaeota" Brochier-Armanet et al. 2008	heterotypic synonym, not pro-validly published
    "Candidatus Geothermarchaeota" Jungbluth et al. 2017	heterotypic synonym, pro-validly published under the ICNP
    "Nitrososphaeraeota" Oren et al. 2015	heterotypic synonym, not validly published
    "Candidatus Verstraetearchaeota" Vanwonterghem et al. 2016	heterotypic synonym, inaccurate spelling
    "Thermoproteaeota" Oren et al. 2015	heterotypic synonym, not validly published
    Nitrososphaerota Brochier-Armanet et al. 2021	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🧕 Boone et al. (2001) assigned this phylum to the domain "Archaea" Woese et al. 1990. Publication: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166. 🇺🇸
  • 🧕 Göker and Oren (2024) assigned this phylum to the domain Archaea Woese et al. 2024. Publication: Goker M, Oren A. Valid publication of names of two domains and seven kingdoms of prokaryotes. Int J Syst Evol Microbiol 2024; 74:6242. 🇩🇪
  • 🧕 Göker and Oren (2024) assigned this phylum to the kingdom Thermoproteati Guy and Ettema 2024. Publication: Goker M, Oren A. Valid publication of names of two domains and seven kingdoms of prokaryotes. Int J Syst Evol Microbiol 2024; 74:6242. 🇩🇪
  • 🧕 Guy and Ettema (2011) assigned this phylum to the superphylum "TACK" Guy and Ettema 2011. Publication: Guy L, Ettema TJ. The archaeal 'TACK' superphylum and the origin of eukaryotes. Trends Microbiol 2011; 19:580-587. 🇸🇪
  • 🧒 Elkins et al. (2008) assigned the genus "Candidatus Korarchaeum" Elkins et al. 2008 to this phylum. Publication: Elkins JG, Podar M, Graham DE, Makarova KS, Wolf Y, Randau L, Hedlund BP, Brochier-Armanet C, Kunin V, Anderson I, et al. A korarchaeal genome reveals insights into the evolution of the Archaea. Proc Natl Acad Sci U S A 2008; 105:8102-8107. 🇩🇪
  • 🧒 McKay et al. (2019) assigned the genus "Candidatus Methanodesulfokora" corrig. McKay et al. 2019 to this phylum. Publication: McKay LJ, Dlakic M, Fields MW, Delmont TO, Eren AM, Jay ZJ, Klingelsmith KB, Rusch DB, Inskeep WP. Co-occurring genomic capacity for anaerobic methane and dissimilatory sulfur metabolisms discovered in the Korarchaeota. Nat Microbiol 2019; 4:614-622. 🇺🇸
  • 🧒 Rinke et al. (2021) assigned the order "Candidatus Korarchaeales" Rinke et al. 2021 to this phylum. Publication: Rinke C, Chuvochina M, Mussig AJ, Chaumeil PA, Davin AA, Waite DW, Whitman WB, Parks DH, Hugenholtz P. A standardized archaeal taxonomy for the Genome Taxonomy Database. Nat Microbiol 2021; 6:946-959. 🇦🇺
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Korachaeota"; "Korearchaeota".
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ "Candidatus Korarchaeota" is the pro-correct name instead if this phylum is regarded as a separate phylum (i.e., if its nomenclatural type is not assigned to another phylum whose name is validly published and legitimate or pro-validly published and pro-legitimate and not rejected and has priority or pro-priority).

Parent taxon: Thermoproteati Guy and Ettema 2024

Assigned by: LPSN automated production system. The following publication is only one of the sources consulted. It may or may not mention this taxon name. — Goker M, Oren A. Valid publication of names of two domains and seven kingdoms of prokaryotes. Int J Syst Evol Microbiol 2024; 74:6242. 🇩🇪

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Record number: 29228