Ancestor

Heterodontosauridae

Marginocephalia

A_multidens

Hypsilophodon_foxii

Gasparinisaurus_cincosaltensis

Parksosaurus_warreni

Thescelosaurus_neglectus

Rhabdodon_priscus

Zalmoxes_shqiperorum

Zalmoxes_robustus

Tenontosaurus_dossi

Tenontosaurus_tilletti

Dryosaurus_lettowvorbeckii

Dryosaurus_altus

Camptosaurus_dispar

Iguanodon_bernissartensis

Iguanodon_atherfieldensis