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)
Charadriiformes (order)
Laridae (family)
gulls (common name)
[hide inferior taxa]
Larus argentatus (species)
Larus canus (species)
Larus fuscus (species)
Larus marinus (species)
Larus novaehollandiae (species)
Larus ridibundus (species)
Sterna hirundo (species)