Name: Methanococcus vulcanius Jeanthon et al. 1999

Category: Species

Proposed as: sp. nov.

Etymology: vul.ca’ni.us. L. masc. adj. vulcanius, of Vulcanus (Vulcan), the Roman fire god, and to the place of isolation, the deep-sea hydrothermal vents

Pronunciation, gender: wul-KA-ni-us, masculine

Type strain: ATCC 700851; DSM 12094; M7

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF051404 Analyse FASTA

Valid publication: Jeanthon C, L'Haridon S, Reysenbach AL, Corre E, Vernet M, Messner P, Sleytr UB, Prieur D. Methanococcus vulcanius sp. nov., a novel hyperthermophilic methanogen isolated from East Pacific Rise, and identification of Methanococcus sp. DSM 4213T as Methanococcus fervens sp. nov. Int J Syst Bacteriol 1999; 49:583-589.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 2 of the IJSB. Int J Syst Bacteriol 1999; 49:937-939.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanocaldococcus vulcanius (Jeanthon et al. 1999) Whitman 2002

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanocaldococcus vulcanius (Jeanthon et al. 1999) Whitman 2002	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Methanococcus vulcanius is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Methanococcus.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 1 time in PubMed until 2025-06-04.

Parent taxon: Methanococcus Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Jeanthon C, L'Haridon S, Reysenbach AL, Corre E, Vernet M, Messner P, Sleytr UB, Prieur D. Methanococcus vulcanius sp. nov., a novel hyperthermophilic methanogen isolated from East Pacific Rise, and identification of Methanococcus sp. DSM 4213T as Methanococcus fervens sp. nov. Int J Syst Bacteriol 1999; 49:583-589.

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Record number: 777860