rhabdaerophilum calidifontis rhabdaerophilum calidifontis rhabdaerophilum calidifontis is a species of alphaproteobacteria. rhabdaerophilum calidifontis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: rhabdaerophilaceaeming et al. 2020 genus: rhabdaerophilumming et al. 2020 binomial name rhabdaerophilum calidifontisming et al. 2020