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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)

Ornithischia (191488)

Children (29 direct children, 1037 direct and indirect children):

Pisanosaurus (tree size 1)

Lesothosaurus (tree size 1)
Possibly fabrosaurus

Agilisaurus (tree size 1)

Heterodontosauridae (tree size 18)
Heterodontosaur

Cerapoda (tree size 646)

Eocursor (tree size 1)

Eurypoda (tree size 59)

Scelidosauridae (tree size 2)

Thyreophora (tree size 190)

Fabrosauridae (tree size 1)

Trimucrodon

Gideonmantellia (tree size 1)

Iguanodontidae (tree size 20)

Genasauria (tree size 58)

Taveirosaurus

Krzyzanowskisaurus

Gyrotrisauropus

Pisanosauridae

Homalocephalidae

Laquintasaura (tree size 1)

Peishansaurus (tree size 1)

Amtosaurus (tree size 1)

Nanosauridae (tree size 2)

Armatosauria (tree size 4)

Gigantoshiraminesauropus

Dinosauropodes

Hypsiloichnus

Jiayinosauropus

Unespichnium