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)
Sauropsida (no rank)
Sauria (no rank)
Archosauria (no rank)
Aves (class)
Neognathae (superorder)
Sphenisciformes (order)
Spheniscidae (family)
Spheniscus (genus)
[hide inferior taxa]
Spheniscus demersus (species)
Spheniscus humboldii (species)
Spheniscus humboldti (species)