In this presentation we introducet he formalism of "Higher Order Reference Nets" (Hornets). Hornets follow theparadigm of "nets within nets", i.e. the paradigm that allows Petrinets as token objects. Since all net tokens are objects of some net class they all share the same structure. In our contribution we therefore introduce the notion of well-formed Hornets which can be simulated by well-formed coloured Petrinets. This allows for several analysis techniques, e.g. symbolic state space generation, which automatically takes the system symmetries into account.