Prosthecomicrobium Staley, 1968 emend. Staley, 1984 Dataset Catalogue of Life Rank GENUS Classification kingdom Bacteria phylum Proteobacteria class Alphaproteobacteria order Rhizobiales family Hyphomicrobiaceae genus Prosthecomicrobium Name Homonyms Prosthecomicrobium Staley, 1968 emend. Staley, 1984