However, if the relationship between the (segmented) appendages and the (also segmented) main body axis of arthropods is one of paramorphism, the whole question of the primacy of the leg versus the antenna would become meaningless (Minelli 2003b ; Minelli and Fusco 2005 ), and no scheme of character transition from one form to the other would be applicable (Minelli et al. 2007 ).