hey people just wanna ask, how do i catch/get cranidos in pokemon diamond?

Please use the pokemon thread.

even though penman already said that continue at pokemon thread, i will reply this time, but no more, anything about pokemon should just stick to that thread. Anyway, back to topic, go to underground, and look for shining spot, keep digging and you will get a fossil call Skull Fossil, then go and revive it at Oreburgh City, and you will get yourself a Cranidos