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