Phylum "Actinobacteria"

Name: "Actinobacteria" (ex Margulis 1974) Cavalier-Smith 2020

Category: Phylum

Proposed as: phyl. nov., nom. rev.

Etymology: Ac.ti.no.bac.te’ri.a. Gr. fem. n. aktis (gen. aktînos), a ray, beam; N.L. neut. pl. n. bacteria, plural of bacterium; N.L. neut. pl. n. Actinobacteria, actinomycete group of bacteria of diverse morphological properties (not formed from a genus name)

Pronunciation (Latin), gender: ak-ti-no-bak-TE-ri-a, neuter

Type order: Actinomycetales Buchanan 1917 (Approved Lists 1980)

Original publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753. 🇬🇧

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Actinomycetota Goodfellow 2021

Synonyms:

Name	Kind
"Actinobacteriota" Whitman et al. 2018	homotypic synonym, not validly published
"Actinobacteria" Goodfellow 2012	homotypic synonym, not validly published
"Actinobacteraeota" Oren et al. 2015	homotypic synonym, not validly published
Actinomycetota Goodfellow 2021	homotypic synonym, validly published under the ICNP

Notes:
- 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Acentobacteria"; "Acfinobacteria"; "Acinobacteria"; "Acitinobacteria"; "Acitnobacteria"; "Aclinobacteria"; "Acnitobacteria"; "Acnnobacteria"; "Acrimbacteria"; "Actbacteria"; "Actenobacteria"; "Actiizobacteria"; "Actinbacteria"; "Actinibacteria"; "Actinobacteiia"; "Actinobacterla"; "Actinobacteru"; "Actinobacteu"; "Actinobactew"; "Actinobactrria"; "Actinobacttria"; "Actinobacyteria"; "Actinobateria"; "Actinohacteria"; "Actinombacteria"; "Actinomicrobia"; "Actionbacteria"; "Actionobacteria"; "Actnobacteria"; "Actonobacteria"; "Adinobacteria"; "Antinobacteria".
- ✏ The authority of the taxon name (Cavalier Smith) deliberately differs from the authors of the publication (Cavalier Smith and Chao).
- 🧍 Cavalier-Smith and Chao (2020) actually proposed the genus name Actinomyces as nomenclatural type of the phylum. While the nomenclature of phyla was not formally regulated by the ICNP at that time, only classes and orders were used in practice as nomenclatural types of phyla. LPSN has thus changed the nomenclatural type to Actinomycetales, which is the logical choice. Publication: Harz CO. Actinomyces bovis, ein neuer Schimmel in den Geweben des Rindes. Deutsche Zeitschrift für Thiermedizin 1877; 5:125-140.
- 🧍 The formation of this name was discussed in Judicial Opinion 129. Publication: Arahal et al. Judicial Opinion No. 129. Int J Syst Evol Microbiol 2024; 74:6064.

Parent taxon: Bacillati (Gibbons and Murray 1978) Oren and Göker 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. — 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.42981Link copied to clipboard

Record number: 42981

This LPSN page was printed on 2026-09-12 23:49:15

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Phylum "Actinobacteria"