In Pewter city, at the museum, you can give the old amber to a scientist who, after you walk back into the building, will give you Aerodactyl
its in pewter city..
This item only exists in firered and leafgreen.
An old amber is the fossil if you like for aerodactyl.
you can only migrate from the old ones to new ones there is no function to reverse it
You take it to the Pokemon Lab on Cinnabar Island, a scientist there will make it into a Aerodactyl.
The Pokemon Aerodactyl can be obtained from the Old Amber. You can find the Old Amber from the Underground. Take it to the Mining Museum in Oreburgh City to obtain Aerodactyl.
You find it in the pond outside the crazy old man's house on two island.
the old amber reveals aridactul
you go to cinnabar island and go into the Pokemon lab then go to the third room and talk to the weird scientist then go out of the third room and go back in and talk to him again and you'll get the Pokemon aerodactyl.
Aerodactyl
you go to Cinnabar city and go to the weird building you check it out by turning it into Aerodactyl
you take it to cinabar island by surfing from the Pokemon place in the viridian forest if you have 4 Pokemon badges. but i don't know how to learn surf..... do you? when you take the amber to cinabar island you can take it to a lab and then leave then you will get an aerodactyl.