Name: Spirochaetes Cavalier-Smith 2002

Category: Class

Proposed as: class. nov.

Etymology: Spi.ro.chae’tes N.L. fem. pl. n. Spirochaetales, type order of the class; N.L. neut. pl. n. Spirochaetes, the class of Spirochaetales

Gender: neuter

Type order: Spirochaetales Buchanan 1917 (Approved Lists 1980)

Valid 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.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 1 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:293-295.

Nomenclatural status: validly published, rejected name

Taxonomic status: synonym

Correct name: Spirochaetia Paster 2020

• Synonyms:

  • Name	Kind
    Spirochaetia Paster 2020	homotypic synonym, validly published
    "Leptospiria" Cavalier-Smith 2020	heterotypic synonym, not validly published
    "Spirochaetia" Cavalier-Smith 2020	homotypic synonym, not validly published

• Notes:
  • Cavalier-Smith (2002) assigned this class to the phylum "Spirochaetae" 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.
  • Cavalier-Smith (2002) assigned the order Spirochaetales Buchanan 1917 (Approved Lists 1980) to this class. 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.
  • Gupta et al. (2013) assigned the order Brachyspirales corrig. Gupta et al. 2014 to this class. Publication: Gupta RS, Mahmood S, Adeolu M. A phylogenomic and molecular signature based approach for characterization of the phylum Spirochaetes and its major clades: proposal for a taxonomic revision of the phyum. Frontiers Microbiol 4, 217 [erratum]. Frontiers Microbiol 2013; 4:322.
  • Gupta et al. (2013) assigned the order Brevinematales Gupta et al. 2014 to this class. Publication: Gupta RS, Mahmood S, Adeolu M. A phylogenomic and molecular signature based approach for characterization of the phylum Spirochaetes and its major clades: proposal for a taxonomic revision of the phyum. Frontiers Microbiol 4, 217 [erratum]. Frontiers Microbiol 2013; 4:322.
  • Gupta et al. (2013) assigned the order Leptospirales corrig. Gupta et al. 2014 to this class. Publication: Gupta RS, Mahmood S, Adeolu M. A phylogenomic and molecular signature based approach for characterization of the phylum Spirochaetes and its major clades: proposal for a taxonomic revision of the phyum. Frontiers Microbiol 4, 217 [erratum]. Frontiers Microbiol 2013; 4:322.
  • Imachi et al. (2008) assigned the genus Exilispira Imachi et al. 2008 to this class. Publication: Imachi H, Sakai S, Hirayama H, Nakagawa S, Nunoura T, Takai K, Horikoshi K. Exilispira thermophila gen. nov., sp. nov., an anaerobic, thermophilic spirochaete isolated from a deep-sea hydrothermal vent chimney. Int J Syst Evol Microbiol 2008; 58:2258-2265.
  • The type order of this class has been placed in the class Spirochaetia Paster 2020. Publication: et al. Class I. Spirochaetia class. nov. In: Krieg NR, Staley JT, Brown DR, Hedlund BP, Paster BJ, et al. (eds), Bergey's Manual of Systematic Bacteriology, 4, 2nd ed., Springer, New York, 2010, p. 471.
  • The type order of this class has alternatively been placed in the class Schizomycetes Nägeli 1857 (Approved Lists 1980). Publication: Breed RS, Murray EG, Hitchens AP. THE OUTLINE CLASSIFICATION USED IN THE BERGEY MANUAL OF DETERMINATIVE BACTERIOLOGY. Bacteriol Rev 1944; 8:255-260.
  • This taxon name is occasionally misprinted in some sources as: "Spirochates"; "Spirochatetes"; "Spirochetes"; "Spriochaetes".
  • Rejected Name (Judicial Commission, Opinion 79 suppl.; IJSEM 64: 3599–3602). Publication: Tindall BJ. Names at the rank of class, subclass and order, their typification and current status: Supplementary information to Opinion 79. Judicial Commission of the International Committee on Systematics of Prokaryotes. Int J Syst Evol Microbiol 2014; 64:3599-3602.

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