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)
Prototheria (superorder)
Monotremata (order)
Ornithorhynchidae (family)
Ornithorhynchus anatinus (species)
duckbill platypus (primary common name)
[show inferior taxa]