Grahamella Dataset NCBI Taxonomy Classification kingdom Pseudomonadati phylum Pseudomonadota class Alphaproteobacteria order Hyphomicrobiales family Bartonellaceae genus Bartonella Name Homonyms Grahamella Grahamella (ex Brumpt 1911) Ristic and Kreier 1984 "Grahamella" Brumpt 1911