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)
Hystricognathi (suborder)
Echimyidae (family)
American spiny rats (common name)
[hide inferior taxa]
Proechimys guairae (species)
Proechimys sp. (species)