(Herrerasaurus,(Heterodontosaurus,(Scutellosaurus,(Lesothosaurus,(Agilisaurus,(Hexinlusaurus,(Othnielosaurus,(((Oryctodromeus,(Zephyrosaurus,Orodromeus)),(Parksosaurus,(Thescelosaurus_neglectus,Thescelosaurus_assinaboiensis,Thescelosaurus_garbanii))),(Hypsilophodon,(Gasparinisaura,(Tenontosaurus,(Rhabdodon,((Dryosaurus_altus,Dryosaurus_lettowvorbecki),(Camptosaurus,(Iguanodon,Ouranosaurus)))))))))))))));