Name: Clostridia Rainey 2010

Category: Class

Proposed as: class. nov.

Etymology: N.L. neut. dim. n. Clostridium, type genus of the type order of the class; N.L. neut. n. suff. -ia, ending to denote a class; N.L. neut. pl. n. Clostridia, the Clostridium class

Gender: neuter

Type order: Clostridiales Prévot 1953 (Approved Lists 1980)

Effective publication: Rainey FA. Class II. Clostridia class nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 736.

IJSEM list: Euzeby JP. Validation list no. 132. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2010; 60:469-472.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    "Natranaerobiia" Sorokin et al. 2021	heterotypic synonym, not validly published
    "Clostridiia" Cavalier-Smith 2020	homotypic synonym, not validly published
    "Halanaerobiia" Cavalier-Smith 2020	heterotypic synonym, not validly published

• Notes:
  • De Vos et al. (2009) assigned the order Clostridiales Prévot 1953 (Approved Lists 1980) to this class. Publication: Rainey FA. Class II. Clostridia class nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 736.
  • Petzoldt et al. (2016) assigned the genus Harryflintia Petzoldt et al. 2016 to this class. Publication: Petzoldt D, Breves G, Rautenschlein S, Taras D. Harryflintia acetispora gen. nov., sp. nov., isolated from chicken caecum. Int J Syst Evol Microbiol 2016; 66:4099-4104.
  • Westerholm et al. (2010) assigned the genus Syntrophaceticus Westerholm et al. 2011 to this class. Publication: Westerholm M, Roos S, Schnurer A. Syntrophaceticus schinkii gen. nov., sp. nov., an anaerobic, syntrophic acetate-oxidizing bacterium isolated from a mesophilic anaerobic filter. FEMS Microbiol Lett 2010; 309:100-104.
  • Taxonomists who have recently focused on this group are the corresponding authors of Lv et al. (2020). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • The phylogenomic assignment score of this taxon is 0.04090 (N = 5).
  • This name was mentioned in a Request for an Opinion. Publication: Oren A, Parte A, Garrity GM. Implementation of Rule 8 of the International Code of Nomenclature of Prokaryotes for the renaming of classes. Request for an Opinion. Int J Syst Evol Microbiol 2016; 66:4296-4298.

Subdivision:

Number of child taxa with a validly published and correct name: 6
Number of child taxa with a validly published name, including synonyms: 6
Total number of child taxa: 9

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    [Clostridia, not assigned to order]	artificial parent node of taxa incertae sedis
    "Comantemales" Hildebrand et al. 2019	not validly published
    Eubacteriales Buchanan 1917 (Approved Lists 1980)	validly published under the ICNP	correct name
    Halanaerobiales corrig. Rainey and Zhilina 1995	validly published under the ICNP	correct name
    Haloanaerobiales Rainey and Zhilina 1995	orthographic variant	misspelling
    Koleobacterales Sakamoto et al. 2021	validly published under the ICNP	correct name
    Natranaerobiales Mesbah et al. 2007	validly published under the ICNP	correct name
    Thermoanaerobacterales Wiegel 2010	validly published under the ICNP	correct name
    Thermosediminibacterales Zhang et al. 2019	validly published under the ICNP	correct name

Parent taxon: "Firmicutes" corrig. Gibbons and Murray 1978 (Approved Lists 1980)

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Record number: 4793