RT Journal Article SR Electronic(1) A1 Stackebrandt, E. A1 Murray, R. G. E. A1 Trüper, H. G.YR 1988 T1 Proteobacteria classis nov., a Name for the Phylogenetic Taxon That Includes the “Purple Bacteria and Their Relatives” JF International Journal of Systematic and Evolutionary Microbiology, VO 38 IS 3 SP 321 OP 325 DO https://doi.org/10.1099/00207713-38-3-321 PB Microbiology Society, SN 1466-5034, AB Proteobacteria classis nov. is suggested as the name for a new higher taxon to circumscribe the a, β, γ, and δ groups that are included among the phylogenetic relatives of the purple photosynthetic bacteria and as a suitable collective name for reference to that group. The group names (alpha, etc.) remain as vernacular terms at the level of subclass pending further studies and nomenclatural proposals., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-38-3-321