Phylum "Spirochaetae"

Name: "Spirochaetae" (Ehrenberg 1855) Cavalier-Smith 1998

Category: Phylum

Proposed as: phyl. nov.

Etymology: N.L. fem. pl. n. Spirochaetae, From the genus Spirochaeta.

Gender: feminine

Original publication: Cavalier-Smith T. A revised six-kingdom system of life. Biol Rev Camb Philos Soc 1998; 73:203-266. 🇬🇧

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Spirochaetota Garrity and Holt 2021

Synonyms:

Name	Kind
"Spirochaetota" Whitman et al. 2018	heterotypic synonym, not validly published
"Spirochaetes" Garrity and Holt 2001	heterotypic synonym, not validly published
Spirochaetota Garrity and Holt 2021	heterotypic synonym, validly published under the ICNP
"Spirochaetaeota" Oren et al. 2015	heterotypic synonym, not validly published

Notes:
- 🧕 Cavalier-Smith (1998) assigned this phylum to the superphylum "Endoflagellata". Publication: Cavalier-Smith T. A revised six-kingdom system of life. Biol Rev Camb Philos Soc 1998; 73:203-266. 🇬🇧
- 🧕 Cavalier-Smith (2002) assigned this phylum to the infrakingdom "Glycobacteria" Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76. 🇬🇧
- 🧕 Cavalier-Smith (2006) assigned this phylum to the infrakingdom "Gracilicutes" Cavalier-Smith 2006. Publication: Cavalier-Smith T. Rooting the tree of life by transition analyses. Biol Direct 2006; 1:19. 🇬🇧
- 🧕 Cavalier-Smith and Chao (2020) assigned this phylum to the superphylum "Spirochaetes" Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753. 🇬🇧
- 🧒 Cavalier-Smith (1998) assigned the subphylum "Euspirochaetae" Cavalier-Smith 1998 to this phylum. Publication: Cavalier-Smith T. A revised six-kingdom system of life. Biol Rev Camb Philos Soc 1998; 73:203-266. 🇬🇧
- 🧒 Cavalier-Smith (1998) assigned the subphylum "Leptospirae" Cavalier-Smith 1998 to this phylum. Publication: Cavalier-Smith T. A revised six-kingdom system of life. Biol Rev Camb Philos Soc 1998; 73:203-266. 🇬🇧
- 🧒 Cavalier-Smith (2002) assigned the class Spirochaetes Cavalier-Smith 2002 to this phylum. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76. 🇬🇧
- 🧒 Cavalier-Smith and Chao (2020) assigned the class "Leptospiria" Cavalier-Smith 2020 to this phylum. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753. 🇬🇧
- 🧒 Cavalier-Smith and Chao (2020) assigned the class Spirochaetia Paster 2020 to this phylum. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753. 🇬🇧
- 😟 A nomenclatural type has not been designated.

Parent taxon: Pseudomonadati (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. 🇩🇪

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Record number: 29259

This LPSN page was printed on 2026-08-09 08:18:03

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Phylum "Spirochaetae"