Name: Thermoclostridium caenicola (Shiratori et al. 2009) Zhang et al. 2018

Category: Species

Proposed as: comb. nov.

Basonym: Clostridium caenicola Shiratori et al. 2009

Etymology: cae.ni’co.la. L. neut. n. caenum, mud, sludge; L. masc./fem. n. suff. -cola, dweller; N.L. masc./fem. n. caenicola, sludge dweller (nominative in apposition)

Pronunciation (Latin), gender: t^her-mo-klos-TRI-di-um ka͡e-NI-ko-la, neuter

Type strain: DSM 19027; EBR596; NBRC 102590

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB221372 Analyse FASTA

Valid publication: Zhang X, Tu B, Dai LR, Lawson PA, Zheng ZZ, Liu LY, Deng Y, Zhang H, Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. Int J Syst Evol Microbiol 2018; 68:3197-3211. 🇨🇳

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 10 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:10-12.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Clostridium caenicola Shiratori et al. 2009	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 6 times in PubMed until 2026-06-11.
  • 🫡 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus. This name is not taxonomically suspended any more in favour of Clostridium caenicola Shiratori et al. 2009. Publication: Shiratori H, Sasaya K, Ohiwa H, Ikeno H, Ayame S, Kataoka N, Miya A, Beppu T, Ueda K. Clostridium clariflavum sp. nov. and Clostridium caenicola sp. nov., moderately thermophilic, cellulose-/cellobiose-digesting bacteria isolated from methanogenic sludge. Int J Syst Evol Microbiol 2009; 59:1764-1770. 🇯🇵 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 7 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:2381-2382.

Parent taxon: Thermoclostridium Zhang et al. 2018

Assigned by: Zhang X, Tu B, Dai LR, Lawson PA, Zheng ZZ, Liu LY, Deng Y, Zhang H, Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. Int J Syst Evol Microbiol 2018; 68:3197-3211. 🇨🇳

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Record number: 798366