You have to take it to the Pewter Museum to a scientist in there.
Sadly... no.
You'll have to revive it from an Old Amber.
You have to revive the Old Amber found in the Underground.
yo do not capture it you find it in underground. then you revive the old amber
revive old amber obtained by mining in underground or trade
You may want to get an Aerodactyl in Pokémon Pearl version. To do so, you have to revive the old amber item.
You can get it by revive the old amber which can be found underground after the national dex
Aerodactyl comes from the old amber you need to revive it on seafoam islands on Pokemon leaf green and fire red , the coal museum in oreburgh on diamond and pearl. hope this helps!
you have to revive it from the old amber, which may be found if you use rock smash on the rocks in the ruins of alph
On Cinnabar Island. Go there and then into the science building and talk to the guy in the last room.
You have to revive an "old amber" at the pewter mueseum in Kanto. The old amber can be found in the Ruins of Alph by smashing rocks there. It may take a while but keep smashing rocks and you should eventually find it.
To get an Aerodactyl in Pokemon Pearl you simply need to revive the Old Amber at the Oreburgh Mining Museum. To get an Old Amber you first need the National Pokedex from seeing every Pokemon in the Sinnoh pokedex. After getting the National Pokdex the Old Amber should start to appear if you dig in The Underground like with the other fossils.