Related how?
Biota
(Life)
Prokaryotes
(Prokaryota)
Bacteria
(Bacterium)
Negibacteria
(Rjheekñndd)
Proteobacteria
(Purple bacteria & relatives)
Gammaproteobacteria
Purple sulfur bacteria
(Chromatiales)
Chromatiaceae
Chromatium
Chromatium okenii (
5113742
)