Register list for 3 new names including Acidulidesulfobacteriota phyl. nov.

Acidulidesulfobacterales was a formerly proposed bacterial order within the Deltaproteobacteria lineage (Tan et al., 2019). Our phylogenomic, 16S rRNA gene, and AAI analyses indicated that this lineage represents a distinct phylum-level clade, leading us to propose the designation Acidulidesulfobacteriota. It currently comprises a single class, Aciduloidesulfobacteriia, and six distinct orders. Four of these are designated as Acididesulfobacterales, Acidulidesulfobacterales (originally proposed by Tan et al. 2019), Hydrothermoacidobacterales, and Acidulidesulfobacteriales.