Tyrunt

Tyrunt (or Chigorasu) is a new Pokemon in Pokemon X and Y. They are T-Rex-like and are called "Fossil Pokemon". Tyrunt evolves into Tyrantrum.

Pokemon.com Description
Tyrunt is an ancient Pokémon from another age, and to add it to your team, you'll have to restore it from a Fossil. You can choose between two Fossils during your adventure in Pokémon X and Pokémon Y—Tyrunt can be obtained by restoring the Jaw Fossil.

Gallery
The gallery for Tyrunt is located here.

Bulbapedia

 * http://bulbapedia.bulbagarden.net/wiki/Tyrunt_(Pok%C3%A9mon)

The Pokemon Wiki

 * http://pokemon.wikia.com/wiki/Tyrunt