User blog comment:Lord Loss/Monster Appreciation Week: Duramboros/@comment-5020152-20130520133008/@comment-1758220-20130521211442

Duramboros also has the club which is most remeniscent of an Ankylosaurs. Whereas all the other ones you mentioned have spiky clubs (some might even be closer to the tail of a Stegosaur), Duramboros is the only one with a rounded, blunt-force club. with no spines on it. (I'm not going to count the moss growths as they are not actually part of its body)