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)
Pinnipedia (order)
Phocidae (family)
Phoca (genus)
[hide inferior taxa]
Phoca groenlandica (species)
Phoca hispida (species)
Phoca sibirica (species)
Phoca vitulina (species)