pseudooctadecabacter pseudooctadecabacter pseudooctadecabacter is a genus of bacteria from the family of rhodobacteraceae with one known species (pseudooctadecabacter jejudonensis). pseudooctadecabacter scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: pseudooctadecabacterbillerbeck et al. 2015 type species pseudooctadecabacter jejudonensis species p. jejudonensis