Croconaw evolves at level 38, not by a stone.
there r certain fossils and the fossil for shieldon is only in pearl, and cranidos only in diamond
well on heart gold he evolves at twenty into quagsire.
It's called a dusk stone and it evolves murkrow and misdreavus. You can look up more about it on serebii.net.
The trainer you are asking about is actually a gym leader in Oreburgh City. His name is Roark and his Cranidos is at level 14.
cranidos doesnt evolve with a stone it evovles at level 30 in to rampardos
Chansey evolves from an Oval Stone.
Cranidos evolves when it becomes level 40 into Rampardos.
Cranidos evolves into Rampardos at level 30.
The Charzard evolves into a Charmander.
Cranidos is a Pokémon that belongs to the rock type that pertains to the IV generation of Pokémon. It evolves into Rampardos when he reaches level 30 with the aid of a rare candy, so you don't need any stone to evolve a Cranidos.
I pretty sure Roselia evolves into roserade using a shiny stone
Cranidos evolves to Rampardos at level 30.
Cranidos evolves into Rampardos at level 30.
Cranidos evolves at level 30.
It evolves into Rampardos
evee and vulpix