Name: Crenarchaeota Cavalier-Smith 2002

Category: Class

Proposed as: class. nov.

Etymology: Cren.arch.ae.o’ta Gr. kren, spring, fount; Gr. archae-, ancient; N.L. neut. pl. n. Crenarchaeota, ?

Gender: neuter

Type order: Thermoproteales Zillig and Stetter 1982

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: Thermoprotei Reysenbach 2002

• Synonyms:

  • Name	Kind
    Conexivisphaeria Kato et al. 2020	heterotypic synonym, validly published
    Thermoprotei Reysenbach 2002	homotypic synonym, validly published
    "Thermoprotea" Oren et al. 2015	homotypic synonym, not validly published

• Notes:
  • Cavalier-Smith (2002) assigned this class to the subphylum "Crenarchaeota" 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 Sulfolobales Stetter 1989 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.
  • Cavalier-Smith (2002) assigned the order Desulfurococcales Huber and Stetter 2002 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.
  • The type order of this class has been placed in the class Thermoprotei Reysenbach 2002. Publication: Reysenbach A-L. Class I. Thermoprotei 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. 169-210.
  • This taxon name is occasionally misprinted in some sources as: "Creanarchaeota"; "Crenarahaeota"; "Crenoarchaeota".
  • This taxon name is occasionally used in singular form as: "Crenarchaeote".
  • 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.
  • Irregularly formed name (not formed from the stem of the name of the nomenclatural type). Crenarchaeota was previously known as "Crenarchaeota" Woese et al. 1990. Publication: Woese CR, Kandler O, Wheelis ML. Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and Eucarya. Proc Natl Acad Sci U S A 1990; 87:4576-4579.

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