Name: "Clostridiia" Cavalier-Smith 2020

Category: Class

Proposed as: class. nov.

Etymology: Clos.tri.di’i.a. N.L. neut. pl. n. Clostridiia, the Clostridiales class

Pronunciation (Latin), gender: klos-tri-DI-i-a, 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

Taxonomic status: synonym (and no standing)

Correct name: Clostridia Rainey 2010

• Synonyms:

  • Name	Kind
    Thermosediminibacteria Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    "Moorellia" Sorokin et al. 2020	heterotypic synonym, not validly published
    Thermodesulfobiia Frolov et al. 2023	heterotypic synonym, validly published under the ICNP
    "Thermoanaerobacteria" Sorokin et al. 2020	heterotypic synonym, not validly published
    "Natranaerobiia" Sorokin et al. 2021	heterotypic synonym, not validly published
    "Desulfotomaculia" Watanabe et al. 2019	heterotypic synonym, not validly published
    Desulfitobacteriia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Peptococcia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Sulfobacillia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Desulfitisporia Sorokin and Merkel 2023	heterotypic synonym, validly published under the ICNP
    "Symbiobacteriia" Wang et al. 2021	heterotypic synonym, not validly published
    Natranaerobiia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Desulfotomaculia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Thermincolia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    "Tissierellia" Alauzet et al. 2014	heterotypic synonym, not validly published
    "Halanaerobiia" Cavalier-Smith 2020	heterotypic synonym, not validly published
    Clostridia Rainey 2010	homotypic synonym, validly published under the ICNP
    Symbiobacteriia Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP

• 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 "Heliobacteriales" Cavalier-Smith 2006 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. 🇬🇧
  • 🧒 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. 🇬🇧
  • 🧒 Cavalier-Smith and Chao (2020) assigned the order Thermoanaerobacterales Wiegel 2010 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. 🇬🇧
  • 🧒 Cavalier-Smith and Chao (2020) assigned the order "Sulfobacillales" 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 been placed in the class Clostridia Rainey 2010. Publication: Gerritsen J, Fuentes S, Grievink W, van Niftrik L, Tindall BJ, Timmerman HM, Rijkers GT, Smidt H. Characterization of Romboutsia ilealis gen. nov., sp. nov., isolated from the gastro-intestinal tract of a rat, and proposal for the reclassification of five closely related members of the genus Clostridium into the genera Romboutsia gen. nov., Intestinibacter gen. nov., Terrisporobacter gen. nov. and Asaccharospora gen. nov. Int J Syst Evol Microbiol 2014; 64:1600-1616. 🇳🇱
  • 🚃 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. 🇮🇱

Parent taxon: Bacillota Gibbons and Murray 2021

Assigned by: LPSN automated production system. The following publication is only one of the sources consulted. It may or may not mention this taxon name. — Oren A, Garrity GM. Valid publication of the names of forty-two phyla of prokaryotes. Int J Syst Evol Microbiol 2021; 71:5056. 🇮🇱

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Record number: 14389