you need the event regigigas...
you go to ruins of alph and smash the rocks with rock smash and some of them contain fossils.
don't know because haven't got there yet
The root fossil is only on Pokemon soul silver by smashing rocks with rock smash in the ruins of alph.
Teach a Pokemon rock smash. Put that Pokemon first in your party. Go to the ruins of Alph. Use rock smash on the rocks. It is random that you receive an item in the ruble. If there is an item there an exclamation mark will appear above your Pokemon's head. Shard are common and fossils are rare. The rocks re spawn when you leave the area.
I think you have to find a special pokemon
You find him in the desert ruins
you go to ruins of alph and smash the rocks with rock smash and some of them contain fossils.
If you mean the Croma Ruins, they are in the far north of the Croma Highlands, under the slab of rock.
You get it from a guy just north of the Ruins of Alph.
Use Rock Smash outside the Ruins of Alph.
rock place,ruins,solaceon town,sinnoh region,pokemon,ds
Talk to the guy on the north entrance to the Ruins of Alph .
You will find Regirock at rock peak ruins route 228.
don't know because haven't got there yet
There are no Pokemon in the abyssal ruins.
on Pokemon diamond where is the ruins
You smash a rock in the Ruins of Alph by using Rock Smash and under 1 of them there will be an old amber.