pacificibacter pacificibacter pacificibacter is a genus of bacteria from the family of rhodobacteraceae. pacificibacter scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: pacificibacterromanenko et al. 2011 type species pacificibacter maritimus species p. aestuarii p. marinus p. maritimus