Tirtouga

Tirtouga is a Generation V /-type Fossil Pokémon Pokémon that appears in Pokemon Black and White. Tirtouga can be revived from the Cover Fossil. It evolves into Carracosta at level 37. It is based on the prehistoric sea turtle Archelon.

Appearance
Tirtouga is extremely similar to a sea turtle, bearing a black/blue shell. Its skin is lighter blue, with its face covered in a marking that is the same color as its shell. It has more of these markings in the middle of its fins.

Trivia

 * Tirtouga is the fifth prehistoric Water-Rock Type Pokémon, the other Pokémon being Kabuto, Kabutops, Omanyte, and Omastar.
 * The name "Tirtouga" may be based off of the words "turtle" and the Caribbean island of Tortuga or maybe the word "touga" mening turtle in spanish. Also there is a chance its name comes from tartaruga (check spelling) which is italian for turtle