Alteromonas nigrifaciens Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Alteromonadales family Pseudoalteromonadaceae genus Pseudoalteromonas species Pseudoalteromonas nigrifaciens Name Homonyms Alteromonas nigrifaciens Alteromonas nigrifaciens (ex White 1940) Baumann et al. 1984