South American poison toad
Marginocephalia
gelastocorid
Dromaeosauridae
marginocephalian
suborder Marginocephalia
casquehead
corytophanine
lacertoid
Theropoda
sauropod dinosaur
sauropod
genus Barosaurus
family Pelobatidae
dinomyid
genus Coelophysis
Pelobatidae
suborder Theropoda
stegosaurian
ceratophryine
polyglyphanodontian
genus Ceratosaurus
cynodont
coelurosaurian
dinocaridid
dinosauriform
family Lacertidae
archosauriform
herrerasaurid
diplodactylid
Lacertidae
lanthanotid
Bufonidae
family Bufonidae
neotheropod
pachycephalosaur
pachycephalosaurus
genus Utahraptor
genus Psittacosaurus
Chlamydosaurus
lacertid lizard
neotetanuran
dinocephalian
archosaurian
deinonychosaur
family Lanthanotidae
Lanthanotidae
lacertid