ceratopsian
horned dinosaur
genus Seismosaurus
Seismosaurus
dinosauromorph
genus Brontosaurus
genus Apatosaurus
allosaur
Titanosauridae
family Titanosauridae
suborder Marginocephalia
Marginocephalia
marginocephalian
seismosaur
Pendraig
ground-shaker
coelophysis
nodosaurian
dinosaur
brontosaurus
apatosaurus
brontosaur
Apatosaurus excelsus
thunder lizard
apatosaur
genus Coelophysis
genus Antrodemus
genus Allosaurus
thescelosaur
giganotosaurus
suborder Theropoda
genus Styracosaurus
sauropod
sauropod dinosaur
genus Barosaurus
genus Titanosaurus
Titanosaurus
Theropoda
rhabdodontomorphan
dryomorph
family Uintatheriidae
dryomorphan
Uintatheriidae
suborder Pachycephalosaurus
hylaeosaurus
neornithischian
suborder Sauropodomorpha
theropod dinosaur
theropod
Sauropodomorpha