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)
[hide inferior taxa]
Gasterosteus aculeatus (species)
Gasterosteus wheatlandi (species)
Pungitius pungitius (species)
Spinachia spinachia (species)