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)
Anseriformes (order)
Anatidae (family)
Anser (genus)
[hide inferior taxa]
Anser albifrons (species)
Anser anser (species)
Anser caerulescens (species)
Anser cygnoides (species)
Anser indicus (species)
Anser sp. (species)