Name: Thermomicrobia Garrity and Holt 2002

Category: Class

Proposed as: class. nov.

Etymology: Ther.mo.mi.cro’bi.a. N.L. neut. n. Thermomicrobium, type genus of the type order of the class; N.L. neut. pl. n. Thermomicrobia, the class of Thermomicrobiales (nominative plural of Thermomicrobium)

Gender: neuter

Type genus: Thermomicrobium Jackson et al. 1973 (Approved Lists 1980)

Effective publication: Garrity GM, Holt JG. Class I. Thermomicrobia class. nov. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1 (The Archaea and the Deeply Branching and Phototrophic Bacteria), Springer, New York, 2001, p. 447-450.

IJSEM list: Anonymous. Validation list no. 85. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2002; 52:685-690.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Hugenholtz and Stackebrandt 2004 Hugenholtz P, Stackebrandt E. Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description). Int J Syst Evol Microbiol 2004; 54:2049-2051. Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 54, part 6 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:551-554.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 2 orders in the class.
    • 🧍 In the paper by Hugenholtz and Stackebrandt 2004, the class Thermomicrobia is erroneously cited as Thermomicrobia Garrity and Holt 2001 (sic).

• Notes:
  • 🥇 Nomenclatural type of the phylum "Thermomicrobaeota" Oren et al. 2015. Publication: Oren A, da Costa MS, Garrity GM, Rainey FA, Rossello-Mora R, Schink B, Sutcliffe I, Trujillo ME, Whitman WB. Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2015; 65:4284-4287.
  • 🥇 Nomenclatural type of the phylum "Thermomicrobiota" Whitman et al. 2018. Publication: Whitman WB, Oren A, Chuvochina M, da Costa MS, Garrity GM, Rainey FA, Rossello-Mora R, Schink B, Sutcliffe I, Trujillo ME, et al. Proposal of the suffix -ota to denote phyla. Addendum to 'Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes'. Int J Syst Evol Microbiol 2018; 68:967-969.
  • 🧕 Boone et al. (2001) assigned this class to the phylum "Thermomicrobia" Garrity and Holt 2001. Publication: Garrity GM, Holt JG. Class I. Thermomicrobia class. nov. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1 (The Archaea and the Deeply Branching and Phototrophic Bacteria), Springer, New York, 2001, p. 447-450.
  • 🧕 Cavalier-Smith and Chao (2020) assigned this class to the subphylum "Chloroflexotia" 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.
  • 🧕 Hugenholtz and Stackebrandt (2004) assigned this class to the phylum "Chloroflexi" Garrity and Holt 2001. Publication: Hugenholtz P, Stackebrandt E. Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description). Int J Syst Evol Microbiol 2004; 54:2049-2051.
  • 🚃 The type genus of this class has alternatively been placed in the class Chlorobacteria Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Themomicrobia"; "Thennomicrobia".
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 6; ATCC: 5; KCCM: 1; KCTC: 1; ICMP: 1; CGMCC: 1.
  • 🧍 Nomenclatural type changed from Thermomicrobiales Garrity and Holt 2002 based on new Rule 22. Publication: Oren A. Emendation of Rules 8, 15, 22, 25a, 30(3)(b), 30(4), 34a, and Appendix 7 of the International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2023; 73:6070.
  • 🧍 This name was mentioned in a Request for an Opinion. Rule 8 of the 2022 revision of the ICNP does not require that the name of a class validly published before 1 January 2012 be formed from the stem of the name of the type genus of the type order of the class plus the ending ia. This class name is orthographically correct (nominative plural of a 2nd declension neuter noun). Publication: Goker M. Solving the remaining problems with names of classes. Request for an Opinion. Int J Syst Evol Microbiol 2022; 72:5605.
  • 🧍 In Validation List no. 85, the page numbers of the effective publication are cited as "pp. 447-450". Publication: Anonymous. Validation list no. 85. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2002; 52:685-690.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 3

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Sphaerobacterales Stackebrandt et al. 1997	validly published under the ICNP	correct name
    Thermomicrobiales Garrity and Holt 2002	validly published under the ICNP	correct name
    [Thermomicrobia, not assigned to order]	artificial parent node of taxa incertae sedis

Parent taxon: Thermomicrobiota Garrity and Holt 2021

Assigned by: 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: 74