Name: "Candidatus Micrarchaeota" Baker and Dick 2013

Category: Phylum

Proposed as: Candidatus

Etymology: Micr.ar.chae.o’ta. N.L. neut. n. Micrarchaeum, a Candidatus genus name; L. neut. pl. n. suff. -ota, ending to denote a phylum; N.L. neut. pl. n. Micrarchaeota, the Candidatus Micrarchaeum phylum

Gender: neuter

Type genus: "Candidatus Micrarchaeum" Baker et al. 2010

Original publication: Baker BJ, Dick GJ. Omic approaches in microbial ecology: charting the unknown. Microbe Magazine 2013; 8:353-360.

IJSEM list: Oren A, Göker M. "Candidatus phylum list no. 1." Lists of names of prokaryotic Candidatus phyla. Int J Syst Evol Microbiol 2023; 73:5821.

Nomenclatural status: not validly published

Taxonomic status: preferred name (not correct name)

• Notes:
  • 🧕 Rinke et al. (2021) assigned this phylum to the superphylum "DPANN" Rinke et al. 2013. Publication: Rinke C, Chuvochina M, Mussig AJ, Chaumeil PA, Davin AA, Waite DW, Whitman WB, Parks DH, Hugenholtz P. A standardized archaeal taxonomy for the Genome Taxonomy Database. Nat Microbiol 2021; 6:946-959.
  • 🚃 The type genus of this phylum has alternatively been placed in the phylum "Euryarchaeota" Garrity and Holt 2001. Publication: Fujishima K, Sugahara J, Miller CS, Baker BJ, Di Giulio M, Takesue K, Sato A, Tomita M, Banfield JF, Kanai A. A novel three-unit tRNA splicing endonuclease found in ultrasmall Archaea possesses broad substrate specificity. Nucleic Acids Res 2011; 39:9695-9704.
  • 🚃 The type genus of this phylum has alternatively been placed in the phylum "Candidatus Parvarchaeota" Rinke et al. 2013. Publication: Rinke C, Schwientek P, Sczyrba A, Ivanova NN, Anderson IJ, Cheng JF, Darling A, Malfatti S, Swan BK, Gies EA, et al. Insights into the phylogeny and coding potential of microbial dark matter. Nature 2013; 499:431-437.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Microarchaeota".
  • 🧍 While the authors did not explicitly propose this taxon name, they did not provide a proper citation of the authority of the name either.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Micrarchaeia" Vazquez-Campos et al. 2021	not validly published	preferred name (not correct name)
    [Micrarchaeota, not assigned to class]	artificial parent node of taxa incertae sedis

Parent taxon: Archaea Woese et al. 2024

Assigned by: Baker BJ, Dick GJ. Omic approaches in microbial ecology: charting the unknown. Microbe Magazine 2013; 8:353-360.

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Record number: 13811