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)
Artiodactyla (order)
Suina (suborder)
Hippopotamidae (family)
Hippopotamus amphibius (species)
hippopotamus (primary common name)
[show inferior taxa]