Barelysuper Pokedex

#138: Omanyte - Rock Water Type

Ultra-sun: Omanyte lived in the seas of antiquity. Its fossils have been found bearing bite marks from Archeops, so apparently Archeops preyed on it.

Alpha-sapphire: Omanyte is one of the ancient and long-since-extinct Pokémon that have been regenerated from fossils by people. If attacked by an enemy, it withdraws itself inside its hard shell.

Y: Revived from an ancient fossil, this Pokémon uses air stored in its shell to sink and rise in water.