Name: "Methanobacteriota" Whitman et al. 2018

Category: Phylum

Proposed as: phyl. nov.

Etymology: Me.tha.no.bac.te.ri.o’ta. N.L. neut. pl. n. Methanobacteriota, the phylum of the class Methanobacteria

Pronunciation (Latin), gender: me-t^ha-no-bak-te-ri-O-ta, neuter

Type class: Methanobacteria Boone 2002

Original publication: Whitman WB, Oren A, Chuvochina M, da Costa MS, Garrity GM, Rainey FA, Rossello-Mora R, Schink B, Sutcliffe I, Trujillo ME, et al. Proposal of the suffix -ota to denote phyla. Addendum to 'Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes'. Int J Syst Evol Microbiol 2018; 68:967-969. 🇺🇸

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Methanobacteriota Garrity and Holt 2023

• Synonyms:

  • Name	Kind
    "Methanobacteraeota" Oren et al. 2015	homotypic synonym, not validly published
    "Euryarchaeota" Garrity and Holt 2001	homotypic synonym, not validly published
    Halobacteriota Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    "Thermoplasmatota" Rinke et al. 2021	heterotypic synonym, not validly published
    Methanobacteriota Garrity and Holt 2023	homotypic synonym, validly published under the ICNP
    Thermoplasmatota Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    "Halobacteriota" Rinke et al. 2021	heterotypic synonym, not validly published

• Notes:
  • 🛺 The type class of this phylum has been placed in the phylum Methanobacteriota Garrity and Holt 2023. Publication: Goker M, Oren A. Valid publication of four additional phylum names. Int J Syst Evol Microbiol 2023; 73:6024. 🇩🇪
  • 🚃 The type class of this phylum has alternatively been placed in the phylum "Euryarchaeota" Garrity and Holt 2001. Publication: Garrity GM, Holt JG. Phylum AII. Euryarchaeota phy. nov. 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. 211-355. 🇺🇸
  • 🚋 The type class of this phylum has alternatively been placed in the phylum Methanobacteriota Garrity and Holt 2023. Publication: Goker M, Oren A. Valid publication of four additional phylum names. Int J Syst Evol Microbiol 2023; 73:6024. 🇩🇪
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Metanobacteriota".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Dodsworth JA, Prakash O. International Committee on Systematics of Prokaryotes: subcommittee on the taxonomy of methanogenic archaea. Minutes of the closed, online meeting held 06 September 2023. Int J Syst Evol Microbiol 2024; 74:6569. 🇮🇳
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Arahal DR, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Halobacteria and Subcommittee on the Taxonomy of Halomonadaceae: minutes of the joint open meeting, 25 November 2025, Oaxaca, Mexico. Int J Syst Evol Microbiol 2026; 76:7065. 🇮🇱
  • 🤦 This taxon lacks a discernible description (protologue).
  • 🧍 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Dodsworth JA, Prakash O. International Committee on Systematics of Prokaryotes: subcommittee on the taxonomy of methanogenic archaea. Minutes of the closed, online meeting held 06 September 2023. Int J Syst Evol Microbiol 2024; 74:6569. 🇮🇳

Parent taxon: Methanobacteriati (Garrity and Holt 2023) Oren and Göker 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: 9013