Name: Halobaculum Oren et al. 1995

Category: Genus

Proposed as: gen. nov.

Etymology: Ha.lo.ba.cu.lum. Gr. masc. n. hals (gen. halos), sea, salt; L. neut. n. baculum, stick; N.L. neut. n. Halobaculum, salt stick

Gender: neuter (stem: Halobacul-)

Type species: Halobaculum gomorrense Oren et al. 1995

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Oren A, Gurevich P, Gemmell RT, Teske A. Halobaculum gomorrense gen. nov., sp. nov., a novel extremely halophilic archaeon from the Dead Sea. Int J Syst Bacteriol 1995; 45:747-754.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 4 of the IJSB. Int J Syst Bacteriol 1996; 46:364-365.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Halorarum Tan et al. 2024	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🧕 Gupta et al. (2016) assigned this genus to the family Halorubraceae Gupta et al. 2016. Publication: Gupta RS, Naushad S, Fabros R, Adeolu M. A phylogenomic reappraisal of family-level divisions within the class Halobacteria: proposal to divide the order Halobacteriales into the families Halobacteriaceae, Haloarculaceae fam. nov., and Halococcaceae fam. nov., and the order Haloferacales into the families, Haloferacaceae and Halorubraceae fam nov. Antonie Van Leeuwenhoek 2016; 109:565-587.
  • 🧕 Yilmaz et al. (2014) assigned this genus to the family Halobacteriaceae Gibbons 1974 (Approved Lists 1980). Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Halobaculuin"; "Halobuculum"; "Hulobaculum".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Arahal DR, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Halobacteria and Subcommittee on the Taxonomy of Halomonadaceae. Minutes of the joint open meeting, 28 June 2022, Alicante, Spain. Int J Syst Evol Microbiol 2022; 72:5584.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Arahal DR, Oren A, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteria and Subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 11 July 2017, Valencia, Spain. Int J Syst Evol Microbiol 2017; 67:4279-4283.
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Zhu et al. (2025). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: JCM: 12; CGMCC: 9; ATCC: 2; KCTC: 2; DSM: 1; MCCC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 13
Number of child taxa with a validly published name, including synonyms: 13
Total number of child taxa: 14

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Halobaculum gomorrense Oren et al. 1995	validly published under the ICNP	correct name
    Halobaculum halobium Tan et al. 2024	validly published under the ICNP	correct name
    Halobaculum halophilum Cui et al. 2021	validly published under the ICNP	correct name
    Halobaculum limi Tan et al. 2024	validly published under the ICNP	correct name
    Halobaculum lipolyticum Tan et al. 2024	validly published under the ICNP	correct name
    Halobaculum litoreum Tan et al. 2024	validly published under the ICNP	correct name
    Halobaculum magnesiiphilum Shimoshige et al. 2013	validly published under the ICNP	correct name
    Halobaculum marinum Tan et al. 2024	validly published under the ICNP	correct name
    Halobaculum rarum Zhu et al. 2025	validly published under the ICNP	correct name
    Halobaculum roseum Chen et al. 2017	validly published under the ICNP	correct name
    Halobaculum rubrum Dilmurat et al. 2022	validly published under the ICNP	correct name
    Halobaculum salinum Cui et al. 2021	validly published under the ICNP	correct name
    Halobaculum saliterrae Myers and King 2020	validly published under the ICNP	correct name
    "Candidatus Halobaculum tyrrellense" (Ugalde et al. 2013) Rinke et al. 2021	not validly published	synonym

Parent taxon: Haloferacaceae Gupta et al. 2015

Assigned by: Gupta RS, Naushad S, Baker S. Phylogenomic analyses and molecular signatures for the class Halobacteria and its two major clades: a proposal for division of the class Halobacteria into an emended order Halobacteriales and two new orders, Haloferacales ord. nov. and Natrialbales ord. nov., containing the novel families Haloferacaceae fam. nov. and Natrialbaceae fam. nov. Int J Syst Evol Microbiol 2015; 65:1050-1069.

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Record number: 515752