the root (no rank)
Bacteria (domain)
Proteobacteria (phylum)
Deltaproteobacteria (class)
Desulfobacterales (order)
Desulfobacteraceae (family)
Desulfobacter (genus)
[hide inferior taxa]
Desulfobacter curvatus (species)
Desulfobacter postgatei (species)
Desulfobacter vibrioformis (species)