You cannot get a Skull Fossil (Cranidos) in Pokemon HeartGold.
by reviving it from a fossil
You get it by getting a life...and not playing Pokemon...
diamond- skull fossil- cranidos-rampardos pearl-armor fossil- sheldon-bastiodon
after you beat the elite four, you can find they fossil in Cliff Cave. good luck!
You cannot get Skull Fossil or Armor Fossil in Pokemon HeartGold.
You cannot get a Skull Fossil (Cranidos) in Pokemon HeartGold.
Manaphy does not have a fossil, as it is not an ancient Pokemon.
by reviving it from a fossil
a shieldon
You get it by getting a life...and not playing Pokemon...
take it to pewter museum
The Skull and Armor Fossils will be given to you by a player in Twist Mountain, he will give you a fossil on a daily basis except for the Plume and Cover Fossils.
In Pokemon pearl you can only obtain an armor fossil before you get the National Dex. After you get the National Dex, these are the possible fossils you can get: Armor Fossil--Shieldon Claw Fossil--Anorith Root Fossil--Lileep Dome Fossil--Kabuto Helix Fossil--Omanyte Old Amber--Aerodactyl
diamond- skull fossil- cranidos-rampardos pearl-armor fossil- sheldon-bastiodon
Root Fossil Claw Fossil Helix Fossil Dome Fossil Old Amber Armor Fossil Skull Fossil Rare Bone
after you beat the elite four, you can find they fossil in Cliff Cave. good luck!