the root (no rank)
Bacteria (domain)
Thermodesulfobacteria (phylum)
Thermodesulfobacteriales (order)
Thermodesulfobacteriaceae (family)
[hide inferior taxa]
Thermodesulfobacterium commune (species)
Thermodesulfobacterium hveragerdense (species)
Thermodesulfobacterium thermophilum (species)