in a lab in pewter city(u gotta beat the elite 4 of johto)
in pewter city
You can turn in your fossil in the Nacrene museum. Speak to the lady on the right. There, the lady will change the fossil to a pokemon!
In Kanto (requires 8 badges and beaten Pokemon champ once for access), in Pewter city there is a museum. go in and on the far right there is a scientist that will take all your fossils and turn them into Pokemon.
The Dome Fossil can be revived into the pokemon kabuto.
have the dome fossil restored at the pewter museum of science
You can only get the Helix Fossil in Pokemon HeartGold. This means that to get an Omanyte or Omastar in SoulSilver, you must either trade for one or trade for a Pokemon holding one.
you have to get the helix fossil, which is the right one in mt. moon and bring it to the poké-lab on cinnaber island. he will turn it into an omanyte for you.
Ruins of Alph by using Rock Smash on the Rock Smash-able rocks. I believe the Dome Fossil is only found in Soulsilver, I could be wrong.
old amber, dome fossil and maybe some more
Tap them with the stylus (the pen)
It turns into Lileep
You need to use rock smash at the ruins of alph. If you're lucky, you will find a fossil.