Bacteria taxa

Pseudomonadati is a prokaryotic kingdom containing approximately one-third of prokaryote species, mostly gram-negative bacteria and their relatives. It is the closest relative of an even larger kingdom of Bacteria, the Bacillati, which are mostly gram-positive bacteria.

Thermotogati is a kingdom of bacteria. They are united by the presence of an outer sheath-like membrane called a "toga".

Bacillati, formerly known as "Terrabacteria", is a kingdom containing approximately two-thirds of prokaryote species, including those in the gram positive phyla (Actinomycetota and Bacillota) as well as the phyla Cyanobacteriota and Chloroflexota.