When you revive the stone ball fossil you receive the knew Ceroball and Kracone

Ceroball
Water
– Height: 1.8m
– Weight: 234kg

They form strong bonds with the stone ball they hold, without it the become extremely anxious

Kracone
Water/Dark
– Height:12m
– Weight: 234kg

Kracone can throw the cannonball they carry with enough force to shatter bullet proof glass