epibacterium epibacterium epibacterium is a genus of bacteria from the family of rhodobacteraceae. epibacterium scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: epibacteriumpenesyan et al. 2013 type species epibacterium ulvae species e. mobile e. multivorans e. scottomollicae e. ulvae