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)
Perissodactyla (order)
Equidae (family)
Equus (genus)
[hide inferior taxa]
Equus asinus (species)
Equus caballus (species)
Equus hemionus (species)
Equus przewalskii (species)
Equus przewalskii/Equus zebra (species)
Hippotigris (subgenus)