the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Actinopterygii (class)
Polypteriformes (order)
Polypteridae (family)
[hide inferior taxa]
Polypterus (genus)