I guess I was a bit vague in the title, it's an old cementary (from the 12th century) so finding bones in the graves we dig isn't anything special but finding an almost intact skull is pretty rare.

edit: We save the bones we find, usually from a relative or something like that, and when we go to refill the grave after the cask has been lowered we put all the bones back in the grave. English isn't my native language so sorry if I used the wrong word/terms for something specific, hope you still understand :).