Name: Methanococcales Balch and Wolfe 1981

Category: Order

Proposed as: ord. nov.

Etymology: N.L. masc. n. Methanococcus, type genus of the order; L. fem. pl. n. suff. -ales, ending to denote an order; N.L. fem. pl. n. Methanococcales, the Methanococcus order

Gender: feminine

Type genus: Methanococcus 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 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.
  • 🥇 Nomenclatural type of the division "Archaebacteria" 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.
  • 🥇 Nomenclatural type of the subdivision "Euryarchaeota" 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.
  • 🥇 Nomenclatural type of the superclass "Neobacteria" 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.
  • 🧕 Petitjean et al. (2015) assigned this order to the superclass "Methanomada" Petitjean et al. 2015. Publication: Petitjean C, Deschamps P, Lopez-Garcia P, Moreira D, Brochier-Armanet C. Extending the conserved phylogenetic core of archaea disentangles the evolution of the third domain of life. Mol Biol Evol 2015; 32:1242-1254.
  • 🧕 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 Methanococcus 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: "Methanocoales".
  • ✏ 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: 29; JCM: 20; ATCC: 14; NBRC: 5; CIP: 3; VKM: 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 Methanococcaceae Balch and Wolfe 1981. 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: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Methanocaldococcaceae Whitman et al. 2002	validly published under the ICNP	correct name
    Methanococcaceae Balch and Wolfe 1981	validly published under the ICNP	correct name

Parent taxon: Methanococci Boone 2002

Assigned by: Boone DR. Class II. Methanococci 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. 235-236.

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Record number: 5030