oceanobacter kriegii oceanobacter kriegii oceanobacter kriegii is a mesophilic bacterium from the genus of oceanobacter which has been isolated from seawater from the united states. oceanobacter kriegii scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: oceanospirillales family: oceanospirillaceae genus: oceanobacter species: o. kriegii binomial name oceanobacter kriegii(bowditch et al. 1984) satomi et al. 2002 type strain atcc 27133, baumann 197, ccug 16057, cip 103443, dsm 6294, ifo 15467, lmg 6238, nbrc 15467, ncimb 2042, ncmb 2042 synonyms oceanospirillum kriegii