(Lesothosaurus_diagnosticus,((Hypsilophodon_foxii,(Rhabdodontids,Tenontosaurs)),(Dryosaurids,(Camptosaurus_dispar,(Batyrosaurus_rozhdestvenskyi,(Hypselospinus_fittoni,(Ouranosaurus_nigeriensis,(((Mantellisaurus_atherfieldensis,Iguanodon_bernissartensis),(Barilium_dawsoni,(Proa_valdearinnoensis,(Jinzhousaurus_yangi,Bolong_yixianensis)))),(Altirhinus_kurzanovi,(Eolambia_caroljonesa,(Equijubus_normani,(Probactrosaurus_gobiensis,(Tethyshadros_insularis,(Levnesovia_transoxiana,(Bactrosaurus_johnsoni,(Gilmoreosaurus_mongoliensis,(Telmatosaurus_transsylvanicus,(Parasaurolophus_walkeri,(Saurolophus_osborni,Edmontosaurus_regalis)))))))))))))))))));