Thiobacillus X Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Chromatiales family Halothiobacillaceae genus Halothiobacillus species Halothiobacillus neapolitanus Name Homonyms Thiobacillus Thiobacillus Q Thiobacillus Beijerinck 1904 (Approved Lists 1980) emend. Boden et al. 2017 Thiobacillus X "Thiobacillus X" Parker and Prisk 1953