Chromatium Dataset NCBI Taxonomy Rank GENUS Classification phylum Pseudomonadota class Gammaproteobacteria order Chromatiales family Chromatiaceae genus Chromatium Name Synonyms "Rhabdomonas" Cohn 1875 Chromatium Perty 1852 (Approved Lists 1980) emend. Imhoff et al. 1998 Monas Rhabdomonas Homonyms Chromatium Chromatium Perty 1852 (Approved Lists 1980) emend. Imhoff et al. 1998