amorphaceae amorphaceae amorphaceae is a family of alphaproteobacteria. amorphaceae scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: amorphaceaehördt et al. 2020 genera acuticoccus hou et al. 2017 amorphus zeevi ben yosef et al. 2008 synonyms "acuticoccaceae" lai et al. 2019