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Phylum "Candidatus Sifarchaeota"
Name: "Candidatus Sifarchaeota" Farag et al. 2021
Etymology: Sif.ar.chae.o’ta. N.L. neut. n. Sifarchaeum, a Candidatus genus name; L. neut. pl. n. suff. -ota, ending to denote a phylum; N.L. neut. pl. n. Sifarchaeota, the Candidatus Sifarchaeum phylum
Pronunciation (Latin), gender: sif-ar-kha͡e-O-ta, neuter
Type genus: "Candidatus Sifarchaeum" corrig. Farag et al. 2021
Effective publication:
Farag IF, Zhao R, Biddle JF. "Sifarchaeota," a Novel Asgard Phylum from Costa Rican Sediment Capable of Polysaccharide Degradation and Anaerobic Methylotrophy. Appl Environ Microbiol 2021; 87:0. 
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IJSEM list:
Oren A, Göker M. Candidatus list no. 5. Lists of names of prokaryotic Candidatus taxa. Int J Syst Evol Microbiol 2023; 73:5821.
Nomenclatural status: not validly published
Nomenclatural pro-status: pro-validly published under the ICNP
Correct name: Promethearchaeota Imachi et al. 2024
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Synonyms:
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Name Kind "Candidatus Lokiarchaeia" Spang et al. 2015 heterotypic synonym, inaccurate spelling "Candidatus Lokiarchaeia" Bulzu et al. 2019 heterotypic synonym, inaccurate spelling and not pro-validly published "Candidatus Hermodarchaeota" Liu et al. 2021 heterotypic synonym, pro-validly published under the ICNP "Candidatus Borrarchaeota" Liu et al. 2021 heterotypic synonym, pro-validly published under the ICNP "Candidatus Wukongarchaeota" Liu et al. 2021 heterotypic synonym, pro-validly published under the ICNP "Candidatus Baldrarchaeota" Liu et al. 2021 heterotypic synonym, pro-validly published under the ICNP Promethearchaeota Imachi et al. 2024 heterotypic synonym, validly published under the ICNP "Candidatus Njordarchaeota" Xie et al. 2022 heterotypic synonym, pro-validly published under the ICNP "Candidatus Odinarchaeota" Zaremba-Niedzwiedzka et al. 2017 heterotypic synonym, pro-validly published under the ICNP "Candidatus Lokiarchaeota" corrig. Spang et al. 2015 heterotypic synonym, pro-validly published under the ICNP
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Notes:
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🧕 Farag et al. (2021) assigned this phylum to the superphylum "Asgard" Zaremba-Niedzwiedzka et al. 2017.
Publication:
Farag IF, Zhao R, Biddle JF. "Sifarchaeota," a Novel Asgard Phylum from Costa Rican Sediment Capable of Polysaccharide Degradation and Anaerobic Methylotrophy. Appl Environ Microbiol 2021; 87:0. 🇺🇸
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🧕 Sun et al. (2021) assigned this phylum to the domain "Archaea" Woese et al. 1990.
Publication:
Sun J, Evans PN, Gagen EJ, Woodcroft BJ, Hedlund BP, Woyke T, Hugenholtz P, Rinke C. Recoding of stop codons expands the metabolic potential of two novel Asgardarchaeota lineages. ISME Commun 2021; 1:30. 🇦🇺
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🧒 Sun et al. (2021) assigned the order "Candidatus Sifarchaeales" Sun et al. 2021 to this phylum.
Publication:
Sun J, Evans PN, Gagen EJ, Woodcroft BJ, Hedlund BP, Woyke T, Hugenholtz P, Rinke C. Recoding of stop codons expands the metabolic potential of two novel Asgardarchaeota lineages. ISME Commun 2021; 1:30. 🇦🇺
- ❗ "Candidatus Sifarchaeota" is the pro-correct name instead if this phylum is regarded as a separate phylum (i.e., if its nomenclatural type is not assigned to another phylum whose name is validly published and legitimate or pro-validly published and pro-legitimate and not rejected and has priority or pro-priority).
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🧕 Farag et al. (2021) assigned this phylum to the superphylum "Asgard" Zaremba-Niedzwiedzka et al. 2017.
Publication:
Farag IF, Zhao R, Biddle JF. "Sifarchaeota," a Novel Asgard Phylum from Costa Rican Sediment Capable of Polysaccharide Degradation and Anaerobic Methylotrophy. Appl Environ Microbiol 2021; 87:0.
Parent taxon: Promethearchaeati Imachi et al. 2024
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. —
Imachi H, Nobu MK, Kato S, Takaki Y, Miyazaki M, Miyata M, Ogawara M, Saito Y, Sakai S, Tahara YO, et al. Promethearchaeum syntrophicum gen. nov., sp. nov., an anaerobic, obligately syntrophic archaeon, the first isolate of the lineage 'Asgard' archaea, and proposal of the new archaeal phylum Promethearchaeota phyl. nov. and kingdom Promethearchaeati regn. nov. Int J Syst Evol Microbiol 2024; 74:6435. 🇯🇵
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Record number: 30112
This LPSN page was printed on 2026-02-10 13:18:53