Name: Thomasclavelia Lawson et al. 2023

Category: Genus

Proposed as: gen. nov.

Etymology: Tho.mas.cla.ve’li.a. N.L. fem. n. Thomasclavelia, in honour of the contemporary German microbiologist Thomas Clavel in recognition of his many contributions to gastrointestinal microbiology and taxonomy

Gender, pronunciation (Latin): feminine (stem: Thomasclaveli-), t^ho-mas-kla-WE-li-a

Type species: Thomasclavelia ramosa (Veillon and Zuber 1898) Lawson et al. 2023

Valid publication: Lawson PA, Saavedra Perez L, Sankaranarayanan K. Reclassification of Clostridium cocleatum, Clostridium ramosum, Clostridium spiroforme and Clostridium saccharogumia as Thomasclavelia cocleata gen. nov., comb. nov., Thomasclavelia ramosa comb. nov., gen. nov., Thomasclavelia spiroformis comb. nov. and Thomasclavelia saccharogumia comb. nov. Int J Syst Evol Microbiol 2023; 73:5694. 🇺🇸

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 73, part 1 of the IJSEM. Int J Syst Evol Microbiol 2023; 73:5835.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Clostridium Prazmowski 1880 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    "Lachnoclostridium" Yutin and Galperin 2013	heterotypic synonym, not validly published
    Clostridium Prazmowski 1880 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Anaerobacter Duda et al. 1996	heterotypic synonym, validly published under the ICNP
    "Erysipelatoclostridium" Yutin and Galperin 2013	homotypic synonym, not validly published
    "Pseudoclostridium" Zhang et al. 2018	heterotypic synonym, not validly published
    "Inflabilis" Prévot 1938	heterotypic synonym, not validly published

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Clostridium Prazmowski 1880 (Approved Lists 1980). Publication: Holdeman LV, Cato EP, Moore WEC. Clostridium ramosum (Vuillemin) comb. nov.: emended description and proposed neotype strain. International Journal of Systematic Bacteriology 1971; 21:35-39.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. The usage of the term "coherent taxon" (or equivalent) is cautioned against. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281. 🇬🇧
  • ❗ Thomasclavelia is the correct name instead if this genus is regarded as a separate genus (i.e., if its nomenclatural type is not assigned to another genus whose name is validly published, legitimate and not rejected and has priority).
  • 🧬 The phylogenomic assignment score of this taxon is 0.13354 (N = 1).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 4; CCUG: 4; JCM: 3; ATCC: 3; NCTC: 3; CIP: 1; BCRC: 1; VTT: 1; NCIMB: 1; CCRC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 4
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Thomasclavelia cocleata (Kaneuchi et al. 1979) Lawson et al. 2023	validly published under the ICNP	synonym
    Thomasclavelia ramosa (Veillon and Zuber 1898) Lawson et al. 2023	validly published under the ICNP	synonym
    Thomasclavelia saccharogumia (Clavel et al. 2007) Lawson et al. 2023	validly published under the ICNP	synonym
    Thomasclavelia spiroformis (Kaneuchi et al. 1979) Lawson et al. 2023	validly published under the ICNP	synonym

Parent taxon: Coprobacillaceae Verbarg et al. 2020

Assigned by: Lawson PA, Saavedra Perez L, Sankaranarayanan K. Reclassification of Clostridium cocleatum, Clostridium ramosum, Clostridium spiroforme and Clostridium saccharogumia as Thomasclavelia cocleata gen. nov., comb. nov., Thomasclavelia ramosa comb. nov., gen. nov., Thomasclavelia spiroformis comb. nov. and Thomasclavelia saccharogumia comb. nov. Int J Syst Evol Microbiol 2023; 73:5694. 🇺🇸

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Record number: 36047

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31