The Old Amber (Japanese: ひみつのコハクSecret Amber) is a Fossil introduced in Generation I that can be regenerated into Aerodactyl.
The Old Amber is different from the other Fossils, being a type of fossilized substance rather than a Fossil named by its appearance; however, the Aerodactyl skeleton in Pewter City Museum implies that it does have its own fossilized remains.
In the Generation I and III games, Old Amber is a Key Item.
Generation IV onward
From Generation IV onward, Old Amber is no longer a Key Item, and is a normal item. Therefore, multiples of them can be obtained, they can be held, and sent to other players via trading.
Related cards Cards listed with a blue background are only legal to use in the current Expanded format. Cards listed with a green background are legal to use in both the current Standard and Expanded formats.
Amber is fossilized tree resin commonly found with insects trapped inside of it. The Old Amber is based on the theory of extracting DNA from the blood still preserved inside the insect to bring back past lifeforms. In real life, however, amber cannot preserve DNA.
It is the only Pokémon Fossil that does not have an alternative choice to form a pair.