Fossil Pokémon are Pokémon which can be obtained from their specific fossils.
All of these Pokémon are of dual Rock-Type, except for Cranidos. They all evolve at Level 40 with the exception of Cranidos and Shieldon, which evolve at Level 30, then Archen and Tirtouga, which evolve at Level 37, and Aerodactyl, who does not evolve at all. Any Fossil can be also found in the Underground in 4th Generation games.
Generation I Fossil Pokémon
These Pokémon can be obtained in Pokémon Red and Blue, Pokémon Yellow, and in Pokémon FireRed and LeafGreen by handing their fossil over to the weird scientist at the Lab on Cinnabar Island.
Kabuto
Kabuto is a shellfish Water and Rock-Type Pokémon revived from a Dome Fossil. It evolves into Kabutops. It is possibly based on a Trilobite.
Omanyte
Omanyte is a spiral Water and Rock-Type Pokémon revived from a Helix Fossil. It evolves into Omastar. Omanyte's name and design come from Ammonites, prehistoric mollusks that lived from the Mid-Paleozoic Era to the end of the Cretaceous Period.
Aerodactyl
Aerodactyl is a fossil and Rock-Type Pokémon revived from Old Amber. Aerodactyl is the only Fossil Pokémon that doesn't evolve. Its name and design the prehistoric animal, Pterodactyls. Aerodactyl is the only Flying/Rock Type Pokémon until Generation V. In the game and manga it is revived in Cinnabar Island
Generation III Fossil Pokémon
These Fossils can be found in the desert area east of Lavaridge Town in Pokémon Ruby and Sapphire. They are in the Crumbling Tower which requires a Mach Bike to get to the top. They can be brought back to life by a Devon worker in Rustboro City. You can get the fossil you did not choose after beating the Elite 4 and going to the fossil maniac's house.
Anorith
Anorith is based on the prehistoric creature Anomalocaris. It is a Bug and Rock-Type Pokémon revived from a Claw Fossil. It evolves into Armaldo.
Lileep
Lileep is a sea lily Grass and Rock-Type Pokémon revived from a Root Fossil. It evolves into Cradily.
Generation IV Fossil Pokémon
You can bring these Pokémon back to life at the Oreburgh Museum.
Cranidos
Cranidos is a head butt Rock-Type Pokémon revived from a Skull Fossil. It evolves into Rampardos. Its fossil can only be obtained in Pokémon Diamond or in Pokémon Platinum if the last digit of your trainer ID is an odd number. It is the only Fossil Pokémon who only has one type. It is based on the dinosaur Pachycephalosaurus.
Shieldon
Shieldon is a shield Steel and Rock-Type Pokémon revived from an Armor Fossil. It evolves into Bastiodon. Its fossil can only be obtained in Pokémon Pearl, Pokémon Platinum, and Pokemon Black & White if the last digit of your trainer ID is an even number. It is based on a ceratopsian dinosaur, like Triceratops.
Generation V Fossil Pokémon
These fossil are found inside the Relic Castle the player can bring these Pokémon back to life at the Nacrene Museum.
Tirtouga
Tirtouga is based on an Archelon. It is a Water/Rock-type Pokémon revived from a Cover Fossil. Carracosta is the evolved form of Tirtouga. It is a Water/Rock-type Pokémon.
Archen
Archen is based on an Archaeopteryx. It is a Rock/-type Pokémon revived from a Plume Fossil. Archeops is the evolved form of Archen. It is a Rock/-type Pokémon.
Total Pokemon And Fossils
Here are the pokemon and fossils once again:
- Kabuto comes from Dome Fossil
- Omanyte comes from Helix Fossil
- Aerodactyl comes from Old Amber
- Anorith comes from Claw Fossil
- Lilleep comes from Root Fossil
- Cranidos comes from Skull Fossil
- Shieldon comes from Armor Fossil
- Tirtouga comes from Cover Fossil
- Archen comes from Plume Fossil
Im sure they will add more fossils in the next gens! So, edit this when they do!