Hyphomicrobium neptunium Leifson 1964 (Approved Lists 1980) 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)