the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Sarcopterygii (class)
Tetrapoda (no rank)
Amniota (no rank)
Mammalia (class)
Eutheria (superorder)
Carnivora (order)
Ursidae (family)
Ursus (genus)
[hide inferior taxa]
Ursus americanus (species)
Ursus arctos (species)
Ursus maritimus (species)
Ursus sp. (species)
Ursus spelaeus (species)
Ursus tibetanus (species)