the root (no rank)
Bacteria (domain)
Proteobacteria (phylum)
Epsilonproteobacteria (class)
Campylobacterales (order)
Campylobacteraceae (family)
Campylobacter (genus)
Campylobacter jejuni (species)
[hide inferior taxa]
Campylobacter jejuni doylei (subspecies)
Campylobacter jejuni jejuni (subspecies)