genus Ceratosaurus
genus Coelophysis
suborder Ceratosaura
Theropoda
suborder Theropoda
Sauropoda
suborder Sauropoda
Titanosauridae
family Titanosauridae
genus Ankylosaurus
macronarian
neosauropod
genus Allosaurus
genus Antrodemus
coelophysis
titanosauriform
saurolophid
allosaur
allosaurus
suborder Pachycephalosaurus
paleovertebrate
sauropodomorphan
plateosaurian
Dinosaurian
Marginocephalia
marginocephalian
suborder Marginocephalia
Ceratopsidae
suborder Ceratopsia
neornithischian
cetiosaur
family Ceratopsidae
Tyrannosaurus rex
dinosauric
Ceratopsia
eusauropod
sauropodous
Ornithischia
order Ornithischia
hylaeosaurus
tyrannosaurid
saurolophine
sauropod
theropod dinosaur
thescelosaur
bird-footed dinosaur
theropod
dino
Saurischia
saurornitholestine