(Ancestor,(Marginocephalia,Heterodontosauridae,(Agilisaurus_multidens,(Hypsilophodon_foxii,(Gasparinisaura_cincosaltensis,((Thescelosaurus_neglectus,Parksosaurus_warreni),((Tenontosaurus_tilletti,(Tenontosaurus_dossi,((Dryosaurus_altus,Dryosaurus_lettowvorbeckii),(Camptosaurus_dispar,(Iguanodon_atherfieldensis,Iguanodon_bernissartensis))))),(Rhabdodon_priscus,(Mochlodon_vorosi,(Zalmoxes_robustus,Zalmoxes_shqiperorum))))))))));