Ancestor

Heterodontosauridae

Marginocephalia

Agilisaurus_multidens

Hypsilophodon_foxii

Gasparinisaura_cincosaltensis

Parksosaurus_warreni

Thescelosaurus_neglectus

Rhabdodon_priscus

Mochlodon_vorosi

Zalmoxes_shqiperorum

Zalmoxes_robustus

Tenontosaurus_tilletti

Tenontosaurus_dossi

Dryosaurus_lettowvorbeckii

Dryosaurus_altus

Camptosaurus_dispar

Iguanodon_bernissartensis

Iguanodon_atherfieldensis