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nounfrom 190 million to 135 million years ago; dinosaurs; conifers
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of or relating to or denoting the second period of the Mesozoic era
Definition that contains jurassic
- brontosaurus huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
- brontosaur huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
- plesiosaur extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
- archaeopteryx extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds
- archeopteryx extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds
- diplodocus a huge quadrupedal herbivore with long neck and tail; of late Jurassic in western North America
- plesiosaurus extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
- megalosaur gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe
- apatosaurus huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
- allosaurus late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus