Name: "Candidatus Hadesarchaeota" Da Cunha et al. 2017

Category: Phylum

Proposed as: Candidatus

Etymology: Ha.des.ar.chae.o’ta. N.L. neut. n. Hadesarchaeum, a Candidatus genus name [probably better: Hadarchaeum]; L. neut. pl. n. suff. -ota, ending to denote a phylum; N.L. neut. pl. n. Hadesarchaeota, the Candidatus Hadesarchaeum phylum [incorrectly formed: implied type unavailable]

Pronunciation (Latin), gender: ha-des-ar-k^ha͡e-O-ta, neuter

Type class: "Candidatus Hadesarchaea" Baker et al. 2016

Original publication: Da Cunha V, Gaia M, Gadelle D, Nasir A, Forterre P. Lokiarchaea are close relatives of Euryarchaeota, not bridging the gap between prokaryotes and eukaryotes. PLoS Genet 2017; 13:e1006810. 🇫🇷

Nomenclatural status: not validly published

Nomenclatural pro-status: not pro-validly published

Taxonomic status: preferred name (not pro-correct name)

• Notes:
  • 🧕 Hua et al. (2019) assigned this phylum to the domain "Archaea" Woese et al. 1990. Publication: Hua ZS, Wang YL, Evans PN, Qu YN, Goh KM, Rao YZ, Qi YL, Li YX, Huang MJ, Jiao JY, et al. Insights into the ecological roles and evolution of methyl-coenzyme M reductase-containing hot spring Archaea. Nat Commun 2019; 10:4574. 🇦🇺
  • 🧍 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: 1

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Hadesarchaea" Baker et al. 2016	not validly published	preferred name

Parent taxon: Methanobacteriati (Garrity and Holt 2023) Oren and Göker 2024

Assigned by: Freese HM, Meier-Kolthoff JP, Sarda Carbasse J, Afolayan AO, Goker M. TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity. Nucleic Acids Res 2026; 54:D884-D891. 🇩🇪

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Record number: 51099