Fossilized Dino in Cobblemon.
Fossilized Dino in Cobblemon is a Galar fossil piece: on its own it revives nothing, paired in the Fossil Analyzer it makes Arctozolt with a Fossilized Bird and Arctovish with a Fossilized Fish. Find it at Prehistoric Frozen Spike dig sites (glacial biomes) and Prehistoric Preserved Skeleton dig sites (frozen oceans) by brushing the suspicious sand or gravel.
Where to dig
Prehistoric Frozen SpikeGlacial biomes
Prehistoric Preserved SkeletonFrozen oceans · random Galar piece
What it revives
Arctozoltneeds Fossilized Bird in the analyzer tooelectricice505Arctovishneeds Fossilized Fish in the analyzer toowaterice505Base stat total from the 1.7.3 species files.
Reviving it
1Insert the fossilRight-click the Fossil Analyzer with a fossil. Galar hybrids need both matching pieces inserted.
2Fill the tankRight-click the Restoration Tank with organic material until it has absorbed 128 points. The tank's fill bar shows progress.
3Wait 12 minutesThe machine starts on its own once both conditions are met. The embryo grows through 8 stages, 90 seconds each.
4Claim the PokemonRight-click the tank with a Poke Ball to add the Pokemon to your party, or break the tank to release it as a wild Pokemon.
5Owner protectionOnly the player who started the restoration can claim it for the first 5 minutes after it finishes.