Name: Methanobacteriales Balch and Wolfe 1981

Category: Order

Proposed as: ord. nov.

Etymology: Me.tha.no.bac.te.ri.a’les. N.L. neut. n. Methanobacterium, type genus of the order; L. fem. pl. n. suff. -ales, ending to denote an order; N.L. fem. pl. n. Methanobacteriales, the Methanobacterium order

Pronunciation, gender: me-t^ha-no-bak-te-ri-A-les, feminine

Type genus: Methanobacterium Kluyver and van Niel 1936 (Approved Lists 1980)

Effective publication: Balch WE, Fox GE, Magrum LJ, Woese CR, Wolfe RS. Methanogens: reevaluation of a unique biological group. Microbiol Rev 1979; 43:260-296.

IJSEM list: Anonymous. Validation list no. 6. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1981; 31:215-218.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • 🥇 Nomenclatural type of the class Archaeobacteria Murray 1988. Publication: Murray RGE. The higher taxa, or, a place for everything..? In: Krieg NR, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 1, The Williams & Wilkins Co., Baltimore, 1984, p. 31-34.
  • 🥇 Nomenclatural type of 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.
  • 🧕 Cavalier-Smith (2002) assigned this order to the class Methanothermea Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76.
  • 🧕 Woese et al. (1990) assigned this order to the kingdom "Euryarchaeota" Woese et al. 1990. Publication: Woese CR, Kandler O, Wheelis ML. Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and Eucarya. Proc Natl Acad Sci U S A 1990; 87:4576-4579.
  • 🧒 Balch et al. (1979) assigned the genus Methanobacterium Kluyver and van Niel 1936 (Approved Lists 1980) to this order. Publication: Balch WE, Fox GE, Magrum LJ, Woese CR, Wolfe RS. Methanogens: reevaluation of a unique biological group. Microbiol Rev 1979; 43:260-296.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Metahnobacteriales"; "Methanobacteniales"; "Methanobocterlales".
  • ✏ The authority of the taxon name (Balch and Wolfe) deliberately differs from the authors of the publication (Balch et al.).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 90; OCM: 53; JCM: 39; ATCC: 37; VKM: 23; NBRC: 18; CGMCC: 3; CECT: 2; KCTC: 2; ACCC: 1.
  • 🧍 This name was mentioned in a Request for an Opinion. Publication: Goker M. Solving the remaining problems with names of classes. Request for an Opinion. Int J Syst Evol Microbiol 2022; 72:5605.
  • 🧍 On the Validation List no. 6, in violation of Rules 15 and 21a, the nomenclatural type is given as Methanobacteriaceae Barker 1956 (Approved Lists 1980). Publication: Euzeby JP, Tindall BJ. Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an opinion. Int J Syst Evol Microbiol 2001; 51:725-727.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 3
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Methanobacteriaceae Barker 1956 (Approved Lists 1980)	validly published under the ICNP	correct name
    Methanothermaceae Stetter 1982	validly published under the ICNP	correct name
    Methanothermobacteraceae Chuvochina et al. 2024	validly published under the ICNP	synonym
    "Methanothermobacteraceae" Rinke et al. 2021	not validly published	synonym

Parent taxon: Methanobacteria Boone 2002

Assigned by: Boone DR. Class I. Methanobacteria class. 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. 213.

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Record number: 5029