the root (no rank)
Bacteria (domain)
Proteobacteria (phylum)
Alphaproteobacteria (class)
Rhizobiales (order)
Brucellaceae (family)
Brucella (genus)
[hide inferior taxa]
Brucella abortus (species)
Brucella canis (species)
Brucella ceti (species)
Brucella melitensis (species)
Brucella neotomae (species)
Brucella ovis (species)
Brucella pinnipedialis (species)
Brucella suis (species)