Cranidos, the Head Butt Pokémon. Cranidos lived in the deep woods about one-hundred million years ago, and its cranium is as hard as steel.
– Ash’s Pokedex
Cranidos is one of Gen IV’s fossil Pokemon, it’s revived from the Skull Fossil. It can be considered Roark’s signature Pokemon.
Stat-wise, Cranidos has a lot of Attack; despite being unevolved (and can evolve), its Attack stat rival many fully evolved Pokemon. It has decent Speed for an unevolved Pokemon. But as a result, its defenses are pretty bad.