Name: Mollicutes Edward and Freundt 1967 (Approved Lists 1980)

Category: Class

Proposed as: class. nov.

Etymology: L. adj. mollis, easily movable, pliant, flexible; L. fem. n. cutis, the skin; N.L. fem. pl. n. Mollicutes, class with pliable cell boundary

Type order: Mycoplasmatales Freundt 1955 (Approved Lists 1980)

Valid publication: Edward DGf, Freundt EA. Proposal for Mollicutes as Name of the class established for the order Mycoplasmatales. International Journal of Systematic Bacteriology 1967; 17:267-268.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published

Taxonomic status: correct name

• Emendations:
  • Gupta et al. 2018 Gupta RS, Sawnani S, Adeolu M, Alnajar S, Oren A. Phylogenetic framework for the phylum Tenericutes based on genome sequence data: proposal for the creation of a new order Mycoplasmoidales ord. nov., containing two new families Mycoplasmoidaceae fam. nov. and Metamycoplasmataceae fam. nov. harbouring Eperythrozoon, Ureaplasma and five novel genera. Antonie Van Leeuwenhoek 2018; 111:1583-1630. Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
    Notes:
    • Emendation accompanied by the inclusion of 5 orders in the class.
  • Gupta et al. 2019 Gupta RS, Son J, Oren A. A phylogenomic and molecular markers based taxonomic framework for members of the order Entomoplasmatales: proposal for an emended order Mycoplasmatales containing the family Spiroplasmataceae and emended family Mycoplasmataceae comprised of six genera. Antonie Van Leeuwenhoek 2019; 112:561-588. Oren A, Garrity GM. List of changes in taxonomic opinion no. 30. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:1850-1851.

• Notes:
  • Nomenclatural type of the phylum "Tenericutes" Murray 1984. Publication: Murray RGE. The higher taxa, or, a place for everything..? In: Krieg NR, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 1., The Williams & Wilkins Co., Baltimore, 1984, p. 31-34.
  • Boone et al. (2001) assigned this class to the phylum "Firmicutes" corrig. Gibbons and Murray 1978 (Approved Lists 1980). Publication: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166.
  • Cavalier-Smith (2002) assigned this class to the subphylum "Endobacteria" 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.
  • The type order of this class has alternatively been placed in the class Schizomycetes Nägeli 1857 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • According to Rules 15, 22 and 27(3), the class Mollicutes is illegitimate because it was proposed without the designation of a nomenclatural type. Publication: Euzeby JP, Tindall BJ. Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an opinion. Int J Syst Evol Microbiol 2001; 51:725-727.

Subdivision:

Number of child taxa with a validly published and correct name: 6
Number of child taxa with a validly published name, including synonyms: 6
Total number of child taxa: 7

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Acholeplasmatales Freundt et al. 1984	validly published	correct name
    Anaeroplasmatales Robinson and Freundt 1987	validly published	correct name
    Entomoplasmatales Tully et al. 1993	validly published	correct name
    Haloplasmatales Rainey et al. 2008	validly published	correct name
    [Mollicutes, not assigned to order]	artificial parent node of taxa incertae sedis
    Mycoplasmatales Freundt 1955 (Approved Lists 1980)	validly published	correct name
    Mycoplasmoidales Gupta et al. 2018	validly published	correct name

Parent taxon: "Tenericutes" Murray 1984

Assigned by: Murray RGE. The higher taxa, or, a place for everything..? In: Krieg NR, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 1, The Williams & Wilkins Co., Baltimore, 1984, p. 31-34.

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