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)
Mammalia (class)
Eutheria (superorder)
Rodentia (order)
Sciurognathi (suborder)
Muroidea (superfamily)
Muridae (family)
Murinae (subfamily)
Rattus (genus)
[hide inferior taxa]
Rattus leucopus (species)
Rattus norvegicus (species)
Rattus rattus (species)
Rattus sp. (species)