Name: "Clostridiia" Cavalier-Smith 2020

Category: Class

Proposed as: class. nov.

Etymology: N.L. neut. pl. n. Clostridiia, the Clostridiales class

Gender: neuter

Type order: Clostridiales Prévot 1953 (Approved Lists 1980)

Original publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.

Nomenclatural status: not validly published

Correct name: Clostridia Rainey 2010

• Synonyms:

  • Name	Kind
    "Thermodesulfobiia" Frolov et al. 2022	heterotypic synonym, not validly published
    Clostridia Rainey 2010	homotypic synonym, validly published under the ICNP
    "Halanaerobiia" Cavalier-Smith 2020	heterotypic synonym, not validly published
    "Desulfotomaculia" Watanabe et al. 2019	heterotypic synonym, not validly published
    "Natranaerobiia" Sorokin et al. 2021	heterotypic synonym, not validly published

• Notes:
  • Cavalier-Smith and Chao (2020) assigned this class to the domain "Bacteria" Woese et al. 1990. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • Cavalier-Smith and Chao (2020) assigned this class to the phylum "Endobacteria" (Cavalier-Smith 1998) Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • Cavalier-Smith and Chao (2020) assigned the order Clostridiales Prévot 1953 (Approved Lists 1980) to this class. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • The type order of this class has alternatively been placed in the class Clostridia Rainey 2010. 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.
  • The authority of the taxon name (Cavalier Smith) deliberately differs from the authors of the publication (Cavalier Smith and Chao).
  • 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.

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Record number: 14389