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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)
Sauropsida
Reptilia (Reptiles)
Eureptilia
Romeriida
Diapsid (Diapsida)
Neodiapsida
Sauria
Archelosauria
Archosauromorpha
Archosauriformes
Crurotarsi
Archosaur (Archosauria)
Avemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosaur (Dinosauria)
Saurischia
Eusaurischia
Š¢heropod (Theropoda)
Neotheropoda
Averostra
Tetanurae
Orionides
Avetheropoda
Coelurosauria
Tyrannoraptora
Maniraptoromorpha
Maniraptoriformes
Maniraptora
Pennaraptora
Paraves (Eumaniraptora)
Bird (Birds)
Palaeognathae
Rheiformes (Rheas)
Rheidae (Rheas)

Rhea (19171)

Children (7 direct children, 19 direct and indirect children):

Greater rhea (tree size 8)
Common rhea

Darwin's rhea (tree size 4)
Lesser rhea

Rhea nana

Rhea mesopotamica

Rhea tarapacensis

Rhea rothschildi

Rhea darwinii