SAGRAM NOMICAN AIYER
Well, I would think the body bag we are referring to, may have actually been the lining of a coffin and not the thick body bags that we use.  The coffins are quite often lined with plastic bags to retain the contents.
	So with the coffin being disintegrated, I would gather that some of the bones would have lost, because the shape of the coffin was altered, and therefore we, that may account for some of the bones being below the level of my exhumation.