ancalomicrobium ancalomicrobium ancalomicrobium is a genus of bacteria from the order of hyphomicrobiales. ancalomicrobium scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: ancalomicrobiaceae genus: ancalomicrobiumstaley 1968 type species ancalomicrobium adetum species a. adetum