Phylum Atribacterota

Name: Atribacterota Katayama et al. 2021

Category: Phylum

Proposed as: phyl. nov.

Etymology: A.tri.bac.te.ro’ta. N.L. masc. n. Atribacter, type genus of the phylum; L. neut. pl. n. suff. -ota, ending to denote a phylum; N.L. neut. pl. n. Atribacterota, the Atribacter phylum

Pronunciation (Latin), gender: a-tri-bak-te-RO-ta, neuter

Type genus: Atribacter Katayama et al. 2021

Valid publication: Oren A, Garrity GM. Valid publication of the names of forty-two phyla of prokaryotes. Int J Syst Evol Microbiol 2021; 71:5056. 🇮🇱

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 10 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5165.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Synonyms:

Name	Kind
"Candidatus Atribacteria" Dodsworth et al. 2013	heterotypic synonym, inaccurate spelling
"Candidatus Atribacterota" corrig. Dodsworth et al. 2013	heterotypic synonym, pro-validly published under the ICNP
"Candidatus Caldatribacteriota" Hahn et al. 2020	heterotypic synonym, pro-validly published under the ICNP
"Atribacterota" Katayama et al. 2020	homotypic synonym, not validly published

Notes:
- 🧕 Göker and Oren (2024) assigned this phylum to the domain Bacteria Woese et al. 2024. Publication: Goker M, Oren A. Valid publication of names of two domains and seven kingdoms of prokaryotes. Int J Syst Evol Microbiol 2024; 74:6242. 🇩🇪
- 🧕 Oren and Garrity (2021) assigned this phylum to the domain "Bacteria" Woese et al. 1990. Publication: Oren A, Garrity GM. Valid publication of the names of forty-two phyla of prokaryotes. Int J Syst Evol Microbiol 2021; 71:5056. 🇮🇱
- 🧒 Freese et al. (2025) assigned the genus "Candidatus Caldatribacterium" Dodsworth et al. 2013 to this phylum. Publication: 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. 🇩🇪
- 🧒 Hedlund et al. (2026) assigned the family "Candidatus Caldatribacteriaceae" Murray et al. 2020 to this phylum. Publication: Hedlund BP, Alvarado T, Sushenko NS, Murphy TR, Torres A, Blocker AM, Lai D, Mayali X, Seymour CO, Muok A, et al. Isolation of genome-predicted Caldatribacterium (Atribacterota) reveals pervasive microbial cultivation problem due to folate precipitation. Nat Commun 2026; 0:0. 🇺🇸
- 🧒 Oren and Garrity (2021) assigned the genus Atribacter Katayama et al. 2021 to this phylum. Publication: Oren A, Garrity GM. Valid publication of the names of forty-two phyla of prokaryotes. Int J Syst Evol Microbiol 2021; 71:5056. 🇮🇱
- 🔧 This taxon name is a replacement for "Candidatus Atribacterota" corrig. Dodsworth et al. 2013.
- ✏ The authority of the taxon name (Katayama et al.) deliberately differs from the authors of the publication (Oren and Garrity).
- 🎰 The BRCs most frequently used for deposits in this group are: JCM: 2; B: 1; KCTC: 1; DSM: 1; NBRC: 1.
- 🧍 The Notification List gives Katayama 2021 as authority but the protologue refers to Katayama et al. (2020) for the properties of the taxon. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 10 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5165.

Subdivision:

Number of child taxa with a validly published and correct name: 1
Number of child taxa with a validly published name, including synonyms: 1
Total number of child taxa: 2

Child taxa:

Name	Nomenclatural status	Taxonomic status
Atribacteria Katayama et al. 2021	validly published under the ICNP	correct name
"Candidatus Phoenicimicrobiia" Jiao et al. 2024	not validly published	preferred name

Parent taxon: Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024

Assigned by: Goker M, Oren A. Valid publication of names of two domains and seven kingdoms of prokaryotes. Int J Syst Evol Microbiol 2024; 74:6242. 🇩🇪

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.25903Link copied to clipboard

Record number: 25903

This LPSN page was printed on 2026-08-13 12:53:19

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Phylum Atribacterota