| ||Details: Fossil was the third set to come out; it comes after the Jungle and before Base Set 2. Its symbol is the skeletal structure of an Aerodactyl's foot. One intention of this set is to complete the 151 species of Pokémon from the first generation. This might explain why Fossil contains the fewest cards of any standard set in the card game. Future sets would often use a gimmick to differentiate its cards from other sets. This set is named for the Pokémon that, in the video games, must be brought to life from fossils: Omanyte, Kabuto, and Aerodactyl. The card game follows a similar path in that the card "Mysterious Fossil" must be played before any fossil Pokémon can be played.