ChromatiaceaeRheinheimeraThiorhodococcusMarichromatiumLamprocystisThiohalocapsaThiocystisThiodictyonThiocapsaThiorhodovibrioLamprobacterArsukibacteriumChromatiumCandidatus NitrosacidococcusAllochromatiumNitrosococcusImhoffiellaHalochromatiumCandidatus ThiosymbionCaldichromatiumThiobacaThioflavicoccusThiospirillumThiococcusRhabdochromatiumThermochromatiumCandidatus Nitrosoglobus