Go to the oreburgh mine company thingy it's near the Pokemon Centre.
In the Pokemon series you can revive fossils into rare Pokemon. In Pearl you can do this at the coal museum.
You get them revived at the mining museum in Oreburgh City, all Pokemon you receive are at lvl 20.
You revive your Fossils in the Museum that is in Pewter City.
be quiet
fossils don't evolve but YOU can revive them,,these are mostly rock type Pokemon
in the museum talk to the guy alone at the desk he will revive it
route 214
fossils are found under ground
go into the underground, that's were you will find any fossil Pokemon. except on diamond, you cannot get a shieldon or lileap. those are only found on pearl. then go to the oreburgh museum and give your fossils to the professor and he will revive them!
in the underground
Oreburgh Town
You can give them a revive that will give the Pokemon half of the hp it has back.