the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Sarcopterygii (class)
Tetrapoda (no rank)
Amphibia (class)
Anura (order)
Bufonidae (family)
Bufo (genus)
[hide inferior taxa]
Bufo americanus (species)
Bufo arenarum (species)
Bufo bufo (species)
Bufo japonicus (species)
Bufo marinus (species)
Bufo regularis (species)