Name: Gemmatimonadia corrig. Zhang et al. 2003

Category: Class

Proposed as: class. nov.

Etymology: Gem.ma.ti.mo.na’di.a. N.L. fem. n. Gemmatimonas, type genus of the class; L. neut. pl. n. suff. -ia, ending to denote a class; N.L. neut. pl. n. Gemmatimonadia, the Gemmatimonas class

Pronunciation (Latin), gender: gem-ma-ti-mo-NA-di-a, neuter

Type genus: Gemmatimonas Zhang et al. 2003

Valid publication: Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K. Gemmatimonas aurantiaca gen. nov., sp. nov., a gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 2003; 53:1155-1163. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 4 of the IJSEM. Int J Syst Evol Microbiol 2003; 53:1703-1705.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Gemmatimonadetes Zhang et al. 2003	other spelling of name, inaccurate spelling
    "Gemmatimonadia" Cavalier-Smith 2020	homotypic synonym, not validly published
    Longimicrobia Pascual et al. 2016	heterotypic synonym, inaccurate spelling
    Longimicrobiia corrig. Pascual et al. 2016	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🧕 Cavalier-Smith and Chao (2020) assigned this class to the subphylum "Gemmatimonadetes" 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. 🇬🇧
  • 🧕 Zhang et al. (2003) assigned this class to the phylum "Gemmatimonadetes" Zhang et al. 2003. Publication: Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K. Gemmatimonas aurantiaca gen. nov., sp. nov., a gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 2003; 53:1155-1163. 🇯🇵
  • 🧒 Zhang et al. (2003) assigned the genus Gemmatimonas Zhang et al. 2003 to this class. Publication: Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K. Gemmatimonas aurantiaca gen. nov., sp. nov., a gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 2003; 53:1155-1163. 🇯🇵
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 7; CECT: 2; MCCC: 2; NBRC: 2; LMG: 2; KCTC: 1; JCM: 1; CGMCC: 1; VKM: 1; ATCC: 1.
  • 🧍 Nomenclatural type changed from Gemmatimonadales Zhang et al. 2003 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. 🇮🇱
  • 🧍 Spelling corrected in Opinion 128. 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. However, this class name used an incorrect plural ending and had to be orthographically corrected. Publication: Goker M. Solving the remaining problems with names of classes. Request for an Opinion. Int J Syst Evol Microbiol 2022; 72:5605. 🇩🇪

Subdivision:

Number of child taxa with a validly published and correct name: 3
Number of child taxa with a validly published name, including synonyms: 3
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Gaopeijiales Ye et al. 2025	validly published under the ICNP	correct name
    Gemmatimonadales Zhang et al. 2003	validly published under the ICNP	correct name
    Longimicrobiales Pascual et al. 2016	validly published under the ICNP	correct name
    "Candidatus Palauibacterales" Aldeguer-Riquelme et al. 2023	not validly published	preferred name

Parent taxon: Gemmatimonadota Zhang et al. 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: 37119