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Dinosaurs

The official category for all terms dinosaur. Dinosaurs were the largest and dominant animals on earth for over 160 million years, from the late Triassic period (about 230 million years ago) until the end of the Cretaceous (about 65 million years ago.)

Contributors in Dinosaurs

Dinosaurs

Hadrosaurus

Animals; Dinosaurs

Any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic.

Iguanodon

Animals; Dinosaurs

A large, partly bipedal, herbivorous dinosaur of the early to mid Cretaceous period, with a broad, stiff tail and the thumb developed into a spike.

Diplodocus

Animals; Dinosaurs

Diplodocus was a huge quadrupedal herbivore with long neck and tail, of late Jurassic in western North America.

Megalosaurus

Animals; Dinosaurs

Megalosaurus was a gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous period in Europe.

Stegosaurus

Animals; Dinosaurs

A herbivorous ornithischian dinosaur with a row of bony plates along its back and a spiked tail probably used as a weapon.

Yutyrannus huali

Animals; Dinosaurs

A species of giant feathered dinosaurs discovered in northeastern China in March 2012. The name "yutyrannus huali" is coined by combining the Latin and Mandarin words meaning "beautiful feathered ...

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