Thiocystis violascens Dataset NCBI Taxonomy Rank SPECIES Classification phylum Pseudomonadota class Gammaproteobacteria order Chromatiales family Chromatiaceae genus Thiocystis species Thiocystis violascens Name Synonyms "Chromatium violaceum" Bergey et al. 1923 Chromatium violaceum Chromatium violascens Chromatium violascens Perty 1852 (Approved Lists 1980) Thiocystis violascens (Perty 1852) Imhoff et al. 1998 Homonyms Thiocystis violascens Thiocystis violascens (Perty 1852) Imhoff et al. 1998