First use ur explorer kit in any area outdoors. u can get the EK by going to the house in Eterna City and talking to the old guy. When you go underground you see little sparkles on te top screen, follow those until u get to them, then tap the screen if you see sparkles on the wall you can dig there and find treasure, which could be fossils. You can take fossils to the Mining Museum in Oreburgh City and talk to the guy at the counter and make the fossil into an ancient Pokemon for you. The fossils are these:
Armor Fossil will turn into Shieldon in Pearl Version.
Claw Fossil will turn into Anorith.*
Dome Fossil will turn into Kabuto.*
Helix Fossil will turn into Omanyte.*
Old Amber will turn into Aerodactyl.*
Skull Fossil will turn into Cranidos in Diamond Version.
Root Fossil will turn into Lileep.*
*Fossils with an asterix mean you can only find those after you get the National Dex.
I hope this helps you! ^o^
The Fossils in Pokémon Diamond are the Helix Fossil which is the Omanyte Fossil, the Dome Fossil which is the Kabuto Fossil, the Old Amber which is the Aerodactyl Fossil, the Root Fossil which is the Lileep Fossil, the Claw Fossil which is the Anorith Fossil, the Skull Fossil which is the Cranidos Fossil and the Armor Fossil which is the Shieldon Fossil.
You get the fossil in pearl and trade it to diamond
Its a sheildon fossil
No
The skull fossil is exclusive to diamond, so get a friend with pkmn diamond to ressurect the fossil and trade you a cranidos. As far as I know, this is the only way.
skull fossil and amour fossil
No
Yes the fossil is the skull fossil.
diamond- skull fossil- cranidos-rampardos pearl-armor fossil- sheldon-bastiodon
Shieldon (Armor Fossil) are only available to Pearl, similar to how you can get Cranidos (Skull Fossil) in Diamond but not in Pearl. In Diamond, you can get a Shieldon by trading with a friend who has one in Pearl.
there arent any
you have to mine it out