Breed et al. (1957) assigned this genus to the family Caulobacteraceae Henrici and Johnson 1935 (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.
Number of child taxa with a validly published and correct name: 1 Number of child taxa with a validly published name, including synonyms: 1 Total number of child taxa: 2