Hyphomicrobium neptunium Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Hyphomonadales family Hyphomonadaceae genus Hyphomonas species Hyphomonas neptunium Name Homonyms Hyphomicrobium neptunium Hyphomicrobium neptunium Leifson 1964 (Approved Lists 1980)