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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 (19166)

Children (17 direct children, 275 direct and indirect children):

Ratite (tree size 2)
Ratitae

Dinornithiformes (tree size 30)
The order of moas

Struthioniformes (tree size 34)
Ratitae

Rheiformes (tree size 40)
Rheas

Aepyornithiformes (tree size 14)

Eleutherornithidae (tree size 2)

Apterygiformes (tree size 20)
Kiwis

Crypturi (tree size 1)

Ambiortiformes (tree size 5)

Lithornithiformes (tree size 16)

Notopalaeognathae (tree size 85)

Remiornithidae (tree size 3)

Eremopezidae (tree size 2)

Gansuiformes (tree size 1)

Palaeocursornithiformes (tree size 1)

Palaeotididae (tree size 2)

Remiornithiformes