Name: Chroobacteria Cavalier-Smith 2002

Category: Class

Proposed as: class. nov.

Etymology: N.L. fem. pl. n. Chroococcales, type order of the class; N.L. neut. pl. n. bacteria, plural of bacterium; N.L. neut. pl. n. Chroobacteria, the Chroococcales class (not formed from a genus name)

Gender: neuter

Type order: Chroococcales Cavalier-Smith 2002

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 under the ICNP, rejected name

Taxonomic status: synonym

Correct name: Cyanophyceae Schaffner 1909

• Synonyms:

  • Name	Kind
    "Chroococcophyceae" Wartenberg 1972	heterotypic synonym, not validly published
    "Chroococcophyceae" Starmach 1966	heterotypic synonym, not validly published
    Chamaesiphonophyceae Hollerbach et al. 1953	heterotypic synonym, validly published under the ICN (Botanical Code)
    "Chroococcophyceae" Proshkina-Lavrenko and Makarova 1968	heterotypic synonym, not validly published
    Chroococcophyceae Hollerbach et al. 1953	heterotypic synonym, validly published under the ICN (Botanical Code)
    Gloeobacteria Cavalier-Smith 2002	heterotypic synonym, validly published under the ICNP, rejected name
    "Pleurocapsophyceae" Starmach 1966	heterotypic synonym, not validly published
    Chamaesiphonophyceae Starmach 1966	heterotypic synonym, validly published under the ICN (Botanical Code), illegitimate name
    Hormogoneae Cavalier-Smith 2002	heterotypic synonym, validly published under the ICNP, rejected name, later homonym
    Nostocophyceae Christensen 1978	heterotypic synonym, validly published under the ICN (Botanical Code)
    Oxyphotobacteria (ex Gibbons and Murray 1978) Murray 1988	homotypic synonym, validly published under the ICNP, rejected name
    Cyanophyceae Schaffner 1909	heterotypic synonym, validly published under the ICN (Botanical Code)

• Notes:
  • 🧕 Cavalier-Smith (2002) assigned this class to the subdivision "Phycobacteria" 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 this class to the subphylum "Phycobacteria" Cavalier-Smith 1998. 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 and Chao (2020) assigned this class to the subphylum "Phycobacteria" Cavalier-Smith 1998. 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 (2002) assigned the order Chroococcales Schaffner 1922 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 Oscillatoriales Schaffner 1922 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 Pleurocapsales Geitler 1925 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 Cyanophyceae Schaffner 1909. Publication: Strunecky O, Ivanova AP, Mares J. An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis. J Phycol 2023; 59:12-51.
  • 🧍 Cyanobacteria validly published under the bacteriological code. Publication: Oren A, Arahal DR, Goker M, Moore ERB, Rossello-Mora R, Sutcliffe IC. International Code of Nomenclature of Prokaryotes. Prokaryotic Code (2022 Revision). Int J Syst Evol Microbiol 2023; 73:5585.
  • 🧍 This name was mentioned in a Request for an Opinion, which discussed its formation. Publication: Goker M. Solving the remaining problems with names of classes. Request for an Opinion. Int J Syst Evol Microbiol 2022; 72:5605.
  • 🧍 Irregularly formed name (not formed from the stem of the name of the nomenclatural type). Rejected Name (Judicial Commission, Opinion 79 suppl.; IJSEM 64: 3599–3602), see Tindall (2014). 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.
  • 🧍 The class Chroobacteria Cavalier-Smith 2002 is illegitimate because the type order Chroococcales Cavalier-Smith 2002 is illegitimate. Publication: Schaffner JH. The classification of plants XII. Ohio Journal of Science 1922; 22:129-139.

Parent taxon: Cyanobacteriota Oren et al. 2022

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, Mares J, Rippka R. Validation of the names Cyanobacterium and Cyanobacterium stanieri, and proposal of Cyanobacteriota phyl. nov. Int J Syst Evol Microbiol 2022; 72:5528.

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Record number: 24