Name: Methanomicrobium antiquum Mochimaru et al. 2016

Category: Species

Proposed as: sp. nov.

Etymology: an.ti’quum. L. neut. adj. antiquum, old, ancient

Pronunciation, gender: an-TI-kwuum, neuter

Type strain: DSM 21220; MobH; NBRC 104160

Conduct genome-based taxonomy at

16S rRNA gene: AB370246 Analyse FASTA

Valid publication: Mochimaru H, Tamaki H, Katayama T, Imachi H, Sakata S, Kamagata Y. Methanomicrobium antiquum sp. nov., a hydrogenotrophic methanogen isolated from deep sedimentary aquifers in a natural gas field. Int J Syst Evol Microbiol 2016; 66:4873-4877.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 11 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:179-182.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanoeremita antiquus (Mochimaru et al. 2016) Zhou et al. 2024

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanoeremita antiquus (Mochimaru et al. 2016) Zhou et al. 2024	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Methanomicrobium antiquum 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 Methanomicrobium.
  • 😷 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 2 times in PubMed until 2025-06-04.

Parent taxon: Methanomicrobium Balch and Wolfe 1981

Assigned by: Mochimaru H, Tamaki H, Katayama T, Imachi H, Sakata S, Kamagata Y. Methanomicrobium antiquum sp. nov., a hydrogenotrophic methanogen isolated from deep sedimentary aquifers in a natural gas field. Int J Syst Evol Microbiol 2016; 66:4873-4877.

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Record number: 794780