Thermotogati is a kingdom of bacteria. They are united by the presence of an outer sheath-like membrane called a "toga".
Phylogeny.
The kingdom contains 3 valid and 2 candididate phyla:
Notes:
The proximity of Thermotogota to Synergistota is well-resolved in both trees. GTDB, which includes ""Ca." Bipolaricaulota", supports its proximity to Deinococcota. However, the two trees do not appear to support the proximity between these two two-phylum groups.
Hao "et al." (2018), using a CheckM genome tree constructed out of 43 marker genes, instead finds that ""Ca." Bipolaricaulota" branches between Thermotogota and Synergistota, with Deinococcota branching relatively far away.