Name: Thermoactinomyces dichotomica (Krassilnikov and Agre 1964) Cross and Goodfellow 1973 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Actinobifida dichotomica" Krassilnikov and Agre 1964

Pronunciation (Latin), gender: … di-k^ho-TO-mi-ka, masculine

Type strain: 114; 114 (Department Soil Biology); ATCC 49854; DSM 44778; JCM 9688; KCTC 3667; strain 114 (Department Soil Biology Moscow University); VKM Ac-1435

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF138733 Analyse FASTA

Effective publication: Cross T, Goodfellow M. Taxonomy and classification of the actinomycetes. In: Sykes G, Skinner FA (eds), Actinomycetales, Characteristics and Practical Importance, Academic Press, London, 1973, p. 11-112.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: inaccurate spelling

Taxonomic status: misspelling (and not recommended for medical use)

Correct name: Thermoactinomyces dichotomicus corrig. (Krassilnikov and Agre 1964) Cross and Goodfellow 1973 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    "Actinobifida dichotomica" Krassilnikov and Agre 1964	homotypic synonym, not validly published, basonym of name in Approved Lists
    Thermoflavimicrobium dichotomicum (Krassilnikov and Agre 1964) Yoon et al. 2005	homotypic synonym, validly published under the ICNP
    Thermoactinomyces dichotomicus corrig. (Krassilnikov and Agre 1964) Cross and Goodfellow 1973 (Approved Lists 1980)	corrected spelling of name, validly published under the ICNP

• Notes:
  • 😷 The taxon name shown here has no assigned risk group, but is the original uncorrected spelling of Thermoactinomyces dichotomicus corrig. (Krassilnikov and Agre 1964) Cross and Goodfellow 1973 (Approved Lists 1980), which has a risk group (Canada) above 1. These are therefore two spellings of the same name that should be treated identically for practical purposes.
  • 🎓 Name mentioned 1 time in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.

Parent taxon: Thermoactinomyces Tsiklinsky 1899 (Approved Lists 1980)

Assigned by: Cross T, Goodfellow M. Taxonomy and classification of the actinomycetes. In: Sykes G, Skinner FA (eds), Actinomycetales, Characteristics and Practical Importance, Academic Press, London, 1973, p. 11-112.

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Record number: 798350