Phylum Deferribacterota

Name: Deferribacterota Garrity and Holt 2021

Category: Phylum

Proposed as: phyl. nov.

Etymology: De.fer.ri.bac.te.ro’ta. N.L. masc. n. Deferribacter, type genus of the phylum; L. neut. pl. n. suff. -ota, ending to denote a phylum; N.L. neut. pl. n. Deferribacterota, the Deferribacter phylum

Pronunciation (Latin), gender: de-fer-ri-bak-te-RO-ta, neuter

Type genus: Deferribacter Greene et al. 1997

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
"Deferribacterota" Whitman et al. 2018	homotypic synonym, not validly published
"Deferribacteraeota" Oren et al. 2015	homotypic synonym, not validly published
"Deferribacteres" Garrity and Holt 2001	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. 🇮🇱
- 🧒 Maruoka et al. (2026) assigned the family "Candidatus Termitispirillaceae" Maruoka et al. 2026 to this phylum. Publication: Maruoka N, Kudo R, Igai K, Shimizu M, Yuki M, Ohkuma M, Hongoh Y. Discovery and genomics of H(2)-oxidizing/O(2)-reducing Deferribacterota ectosymbiotic with protists in the guts of termites and a Cryptocercus cockroach. ISME Commun 2026; 6:ycag002. 🇯🇵
- 🧒 Oren and Garrity (2021) assigned the genus Deferribacter Greene et al. 1997 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. 🇮🇱
- 🚃 The type genus of this phylum has alternatively been placed in the phylum "Deferribacteres" Garrity and Holt 2001. Publication: Jumas-Bilak E, Roudiere L, Marchandin H. Description of 'Synergistetes' phyl. nov. and emended description of the phylum 'Deferribacteres' and of the family Syntrophomonadaceae, phylum 'Firmicutes'. Int J Syst Evol Microbiol 2009; 59:1028-1035. 🇫🇷
- ✏ The authority of the taxon name (Garrity and Holt) deliberately differs from the authors of the publication (Oren and Garrity).
- 🎰 The BRCs most frequently used for deposits in this group are: DSM: 11; JCM: 5; ATCC: 5; NBRC: 4; VKPM: 1; VKM: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 1
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 3

Child taxa:

Name	Nomenclatural status	Taxonomic status
Deferribacteres Huber and Stetter 2002	validly published under the ICNP	correct name
"Deferribacteria" Cavalier-Smith 2020	not validly published	synonym
Ferrobacteria Cavalier-Smith 2002	validly published under the ICNP, rejected name	synonym

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. 🇩🇪

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Record number: 25897

This LPSN page was printed on 2026-08-13 23:49:05

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Phylum Deferribacterota