Name: "Methanimicrococcus hacksteinii" Protasov and Brune 2023

Category: Species

Proposed as: sp. nov.

Etymology: hack.stei’ni.i. N.L. gen. masc. n. hacksteinii, of Hackstein, named in honor of Johannes H.P. Hackstein for his important contributions on the hydrogenosomes of anaerobic protists and methanogenesis in arthropod guts

Pronunciation, gender: hakk-STE͡I-ni-i, masculine

Nomenclatural type: At1; DSM 115570; JCM 39383

Conduct genome-based taxonomy at

16S rRNA gene: OQ442333 Analyse FASTA

Original publication: Protasov E, Nonoh JO, Kastle Silva JM, Mies US, Herve V, Dietrich C, Lang K, Mikulski L, Platt K, Poehlein A, et al. Diversity and taxonomic revision of methanogens and other archaea in the intestinal tract of terrestrial arthropods. Front Microbiol 2023; 14:1281628.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Methanimicrococcus hacksteinii Protasov and Brune 2025

• Synonyms:

  • Name	Kind
    Methanimicrococcus hacksteinii Protasov and Brune 2025	homotypic synonym, validly published under the ICNP

• Notes:
  • ✏ The authority of the taxon name (Protasov and Brune) deliberately differs from the authors of the publication (Protasov et al.).

Parent taxon: Methanimicrococcus corrig. Sprenger et al. 2000

Assigned by: Protasov E, Nonoh JO, Kastle Silva JM, Mies US, Herve V, Dietrich C, Lang K, Mikulski L, Platt K, Poehlein A, et al. Diversity and taxonomic revision of methanogens and other archaea in the intestinal tract of terrestrial arthropods. Front Microbiol 2023; 14:1281628.

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Record number: 41775