Hyphomicrobiales Douglas 1957 (Approved Lists 1980) Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Hyphomicrobiales Name Homonyms Hyphomicrobiales Hyphomicrobiales Douglas 1957 emend. Hordt et al. 2020 Hyphomicrobiales Douglas 1957 (Approved Lists 1980)