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)
Cetacea (order)
Odontoceti (suborder)
Physeteridae (family)
Physeter catodon (species)
sperm whale (primary common name)
[hide inferior taxa]