Azoarcus anaerobius Springer et al. 1998 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Betaproteobacteria order Rhodocyclales family Rhodocyclaceae genus Aromatoleum species Aromatoleum anaerobium Name Homonyms Azoarcus anaerobius Azoarcus anaerobius Springer et al. 1998