A Fossilized Fish appeared in PASS39, where Marnie was shown to discovered one for Cara Liss. Combined with the Fossilized Dino that Marnie had also found, Cara Liss was able to restore it into an Arctovish.
In Pokémon Sword and Shield, the Fossilized Fish and Fossilized Drake appear to have mistakenly swapped sprites. The Fossilized Fish offers the "-vish" head for Dracovish and Arctovish but visually looks like the body provided by the Fossilized Drake. In the animated series, their appearances are the opposite of their game sprites.
The Pokémon revived from the Fossilized Fish have 10 extra points in their Defense and Special Defense Stats, and 10 fewer points in their Attack and Special Attack stats, compared to their counterparts revived from the Fossilized Bird.
