Kabutops

Kabutops (カブトプス Kabutops) is a Rock/Water-type Pokémon, and is a Fossil Pokémon. It is also the evolved form of Kabuto, which can evolve into Kabutops starting at level 40.

There is a suggestion in an episode from the first episode of Pokemon that Kabutops are very territorial, and have short tempers. This is supported by how Ash was attacked by him. Of course this is, however, just a suggestion, as the others were angered by Ash "dropping in" as well.

Kabutops has made several appearances in episodes, and even in the special The Mastermind of Mirage Pokemon.