erythrobacter ramosus erythrobacter ramosus erythrobacter ramosus is a species of bacterium. erythrobacter ramosus scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: erythrobacteraceae genus: erythrobacter species: e. ramosus binomial name erythrobacter ramosus(yurkov et al. 1994) xu et al. 2020 synonyms erythromicrobium ramosum yurkov et al. 1994 description it is an obligately aerobic, bacteriochlorophyll a-containing bacteria.