Dinosaur Series: Tyrannosaurus

The Tyrannosaurus (Tyrannosaurus rex) is a large, bipedal, carnivorous theropod dinosaur in the Tyrannosauridae family. Its name means king of tyrants. It is commonly known as Tyrannosaurus Rex or T-Rex. 

It lived about 68-66 million years ago in the Upper Cretaceous period.

The Tyrannosaurus had a large head and long, heavy tail. It had powerful hind (back) legs and very small front legs. It is bipedal, which means that is walks on two legs. Its back legs had two clawed digits. Its teeth were long, curved, and crenelated (notched).

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Dinosaur Series: Cryolophosaurus

The Cryolophosaurus (Cryolophosaurus ellioti) is a large well-built theropod dinosaur in the Cryolophosaurus genus. Cryolophosaurus means frozen crested lizard beause it was found in Antarctica (South Pole).

It lived about 180 million years ago in the Early Jurassic period.

The Cryolophosaurus had a high, narrow skull. It had a bony crest just above the eyes. It had long, heavy hind (back) legs and short forelimbs (front limbs), like arms. It had two large clawed digits, and a smaller digit, on each limb. It had a long, thick tail, and a coat of feathers. 

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