Are there any extinct Pokémon?

Are there any extinct Pokémon? The last line of extinct marine Pokémon consist of Tirtouga and Carracosta, which are based on the late Cretaceous giant turtle Archelon or its slightly smaller relative Protostega.

The last line of extinct marine Pokémon consist of Tirtouga and Carracosta, which are based on the late Cretaceous giant turtle Archelon or its slightly smaller relative Protostega.