Betaproteobacteria Dataset NCBI Taxonomy Rank CLASS Classification phylum Pseudomonadota class Betaproteobacteria Name Synonyms Betaproteobacteria Garrity et al. 2006 emend. Boden et al. 2017 Proteobacteria beta subdivision Purple bacteria, beta subdivision beta proteobacteria beta subdivision beta subgroup Homonyms Betaproteobacteria Betaproteobacteria Garrity et al. 2006 emend. Boden et al. 2017