tyrannosaurid
nothosaurian
eudromaeosaur
suborder Pachycephalosaurus
albertosaur
thescelosaur
allosaurus
eudromaeosaurian
hadrosauroid
diplodocoid
compsognathid
Dinosaurian
allosaur
hadrosauriform
neotetanuran
subclass Synapsida
ankylosauromorph
Synapsida
order Ictodosauria
ankylopollexian
alamosaur
tetanuran
Ictodosauria
iguanodon
suborder Sauropoda
neotheropodan
tyrannosauroid
edmontosaur
polyglyphanodontian
genus Triceratops
dryomorph
dryomorphan
branchiosaur
hadrosaur
duck-billed dinosaur
Sauropoda
choristodere
giganotosaurus
therizinosaur
-saur
melanorosaurid
subarctometatarsus
genus Titanosaurus
therizinosaurian
Titanosaurus
genus Corythosaurus
genus Anatotitan
dinosauric
scansoriopterigid