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late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus allosaur , allosaurus
huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic apatosaur , apatosaurus , Apatosaurus excelsus , brontosaur , brontosaurus , thunder lizard
huge herbivorous dinosaur of Cretaceous found in Argentina argentinosaur
dinosaur that could grow to be as tall as a building five stories tall barosaur , barosaurus
living fossil or so-called `green dinosaur'; genus or subfamily of primitive nut-bearing trees thought to have died out 50 million years ago; a single specimen found in 1994 on Mount Bartle Frere in eastern Australia; not yet officially named Bartle Frere , genus Bartle-Frere , green dinosaur
dinosaur with long neck and small head brontosaur
large carnivorous bipedal dinosaur having huge claws carnosaur
primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America ceratosaur , ceratosaurus
very small bipedal carnivorous dinosaur of the late Jurassic in Bavaria compsognathus
duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet corythosaur , corythosaurus
swift agile wolf-sized bipedal dinosaur having a large curved claw on each hind foot; of the Cretaceous deinonychus
carnivorous dinosaur of the Permian in North America having a crest or dorsal sail dimetrodon
heavily armored and highly spiked dinosaur with semi-upright posture Edmontonia
duck-billed dinosaur from Canada found as a fossilized mummy with skin edmontosaurus
theropod dinosaur of the genus Eoraptor eoraptor
carnivorous dinosaur of North America; late Jurassic genus Allosaurus , genus Antrodemus
enormous dinosaur of the middle Cretaceous found in Argentina genus Argentinosaurus
huge quadrupedal herbivorous dinosaur; late Jurassic genus Barosaurus
advanced bipedal carnivorous dinosaur genus Deinonychus , genus Utahraptor
authorities disagree over whether to classify the genus as bird or dinosaur genus Mononychus
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