Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordates)
Olfactores
Craniata (Craniata (chordata))
Vertebrata (Animals with backbone)
Gnathostomata (Gnathostome)
Eugnathostomata
Teleostomi
Euteleostomi
Sarcopterygii (Lobe-finned fishes)
Dipnotetrapodomorpha
Tetrapodomorpha (Tetrapodomorph)
Tetrapoda (Tetrapod)
Reptiliomorpha
Amniota (Amniote)
Synapsidomorpha
Synapsid (Synapsida)
Eupelycosauria
Sphenacodontia
Sphenacodontoidea
Therapsida (Therapsid)
Neotherapsida
Theriodont (Theriodontia)
Eutheriodontia
Cynodontia (Cynodont)
Epicynodontia
Eucynodontia
Probainognathia
Chiniquodontoidea
Prozostrodontia
Mammaliaformes
Mammal (Mammals)
Prototheria
Monotreme (Monotremata)
Platypoda
Ornithorhynchidae
Ornithorhynchus (3745848)
Children (2 direct children, 2 direct and indirect children):
Platypus
Duck-billed platypus
Ornithorhynchus maximus