Not long at all once you beat the Elite four and the Champion. Just dig for around and hour and you'll run into tons! I've found 5 just digging randomly. They're very common, along with Root Fossils.
Dome fossil is Kabuto and Old Amber is Aerodactyl.
you can find every fossil there is in all the games: Skull fossil: cranidos, Shield fossil: Shieldon, Root fossil: Lileep, Claw fossil: Anorith, Helix fossil: Omanyte, Old Amber: Areodactyl and a Dome fossil: Kabuto OBS you can only find all of them AFTER you get the National Dex. Until then, you can only find the Shield fossil if you have Pearl, and the Skull fossil if you have Diamond
you can't find it in wild you need to go underground and find armor fossil then go to oreburgh city to the fossil exchange thing then you will exchange your armor fossil into shildon
Dome fossil becomes like in the other games the Pokemon "Kabuto" wich later evolves into "Kabutops"
Cranidos
you have to dig for a long time in the walls in the underground and you will dig a dome fossil
Type your answer here... yes . go under ground and keep digging. soon you will find it
Yes it is! But, however, I am not sure how common it is. (Took me about two hours, but you might have better luck.)
The dome fossil is only in firered and leafgreen, you can get the claw fossil or some other fossil, the claw fossil is anorith the other one is lileep.
I am pretty sure the dome fossil is kabuto.
Kabuto is the dome fossil
go to a cave
Kabuto can be resurrected from a Dome Fossil.
You have to find a Dome Fossil in underground then return it in Oreburgh City Museum.If you have 6 Pokemon, you don't receive Kabuto.If you check your PC and Desposit your Pokemon,then you go back to Oreburgh Museum then talk to the man wearing the lab coat then, he will turn the Dome Fossil into a Level 20 Kabuto. !
When revived, the Dome Fossil will be Kabuto.
Root Fossil Claw Fossil Helix Fossil Dome Fossil Old Amber Armor Fossil Skull Fossil Rare Bone
Kabuto is in the dome fossil and Omanyte is in the helix fossil.