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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



Animals; Dinosaurs

Species of Triceratops horridus. Its ugly head tool name with three horns. He lived in the late Cretaceous period. This herbivore ate tough plants and high in fiber. Measured 9 meters long and ...


Animals; Dinosaurs

Velociraptor is a species of dinosaurs that lived 73 million years ago (Cretaceous period). There were two types and it was bipedal predator with a long tail and 3 finger claws. They were not large ...

Duck-billed dinosaur

Animals; Dinosaurs

A medium sized or large dinosaur that ate plants and had a mouth shaped like a duck's bill.


Animals; Dinosaurs

A very large dinosaur that walked on four legs and ate plants. It had a long neck and tail and a small head.

Tyrannosaurus Rex

Animals; Dinosaurs

Tyrannosaurus Rex was a bipedal carnivore which used to live in the western North America during the Maastrichtian age of the upper Cretaceous Period (about 70 million years ago). It was one of the ...


Animals; Dinosaurs

The oldest known fossil bird, of the late Jurassic period. It had feathers, wings, and hollow bones like a bird, but teeth, a bony tail, and legs like a small coelurosaur dinosaur.


Animals; Dinosaurs

Brachiosaurus , meaning "arm lizard", is a genus of sauropod dinosaur that lived during the Late Jurassic Period and possibly the Early Cretaceous Period.

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