Sorted by generation the Pokemon first appeared in
Gen I
- Omanyte (Helix Fossil) -> Omastar
- Kabuto (Dome Fossil) -> Kabutops
- Aerodactyl (Old Amber)
Gen III
- Anorith (Claw Fossil) -> Armaldo
- Lileep (Root Fossil) -> Cradily
Gen IV
- Cranidos (Skull fossil) -> Rampardos
- Shieldon (Armor Fossil) -> Bastiodon
Gen V
- Archen (Plume Fossil) -> Archeops
- Tirtouga (Cover Fossil) -> Carracosta
Gen VI
- Tyrunt (Jaw Fossil) -> Tyrantrum
- Amaura (Sail Fossil) -> Aurorus
Gen VIII
- Dracozolt (Fossilized Bird + Fossilized Drake)
- Arctozolt (Fossilized Bird + Fossilized Dino)
- Dracovish (Fossilized Fish + Fossilized Drake)
- Arctovish (Fossilized Fish + Fossilized Dino)
