Name: Caulobacteraceae Henrici and Johnson 1935 (Approved Lists 1980)

Category: Family

Proposed as: fam. nov.

Etymology: Cau.lo.bac.te.ra’ce.ae. N.L. masc. n. Caulobacter, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Caulobacteraceae, the Caulobacter family

Pronunciation (Latin), gender: ka͡u-lo-bak-te-RA-ke-a͡e, feminine

Type genus: Caulobacter Henrici and Johnson 1935 (Approved Lists 1980)

Effective publication: Henrici AT, Johnson D. Stalked bacteria, a new order of Schizomycetes. Journal of Bacteriology 1935; 29:3-4.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    "Aquidulcibacteraceae" Hallgren et al. 2025	heterotypic synonym, not validly published

• Notes:
  • 🧕 Breed et al. (1957) assigned this family to the suborder Pseudomonadineae Breed et al. 1957 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • 🧒 Breed et al. (1957) assigned the genus Gallionella Ehrenberg 1838 (Approved Lists 1980) to this family. Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • 🧒 Breed et al. (1957) assigned the genus Nevskia Famintzin 1892 (Approved Lists 1980) to this family. Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • 🚃 The type genus of this family has alternatively been placed in the family "Caulobacteriaceae". Publication: Burkholder WH. Genus I. Pseudomonas Migula. Bacterial plant pathogens. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 82-150.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Caulebacteriaceae"; "Caulobactcriaceae".
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 68; LMG: 33; KCTC: 32; ATCC: 31; CCUG: 26; JCM: 25; CIP: 22; VKM: 18; CGMCC: 16; NBRC: 15.

Subdivision:

Number of child taxa with a validly published and correct name: 8
Number of child taxa with a validly published name, including synonyms: 8
Total number of child taxa: 11

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Acaudatibacter" Hallgren et al. 2025	not validly published	preferred name
    Aquidulcibacter Cai et al. 2018	validly published under the ICNP	correct name
    Asticcacaulis Poindexter 1964 (Approved Lists 1980)	validly published under the ICNP	correct name
    Brevundimonas Segers et al. 1994	validly published under the ICNP	correct name
    Caulobacter Henrici and Johnson 1935 (Approved Lists 1980)	validly published under the ICNP	correct name
    Peiella Wu et al. 2024	validly published under the ICNP	correct name
    Phenylobacterium Lingens et al. 1985	validly published under the ICNP	correct name
    "Poindextera" Hallgren et al. 2025	not validly published	synonym
    Pseudaquidulcibacter Liu et al. 2022	validly published under the ICNP	correct name
    "Siderophacus" Beger 1949	not validly published	preferred name
    Terricaulis Vieira et al. 2020	validly published under the ICNP	correct name

Parent taxon: Caulobacterales Henrici and Johnson 1935 (Approved Lists 1980)

Assigned by: Garrity GM, Bell JA, Lilburn T. Class I. Alphaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1. 🇺🇸

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Record number: 290