the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Actinopterygii (class)
Neopterygii (no rank)
Teleostei (no rank)
Euteleostei (no rank)
Gasterosteiformes (order)
Gasterosteidae (family)
Gasterosteus aculeatus (species)
[show inferior taxa]