Name: Methanococcus fervens Jeanthon et al. 1999

Category: Species

Proposed as: sp. nov.

Etymology: fer’vens. L. part. adj. fervens, boiling hot, referring to its high growth temperature

Gender: masculine

Type strain: AG86; DSM 4213; JCM 15782

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF056938 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 fervens (Jeanthon et al. 1999) Whitman 2002

Risk group: 1

• Synonyms:

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

• Notes:
  • ❗ Methanococcus fervens 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 Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 2 times in PubMed until 2024-03-28.

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: 777847