Jurassic

n late Jurassic carnivorous dinosaur

n huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic

n extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones

primitive reptile-like fossil birds of the Jurassic or early Cretaceous

plural of brontosaur n huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic