OUTGROUP
Iguanodon
Ouranosaurus
Probactrosaurus
Telmatosaurus
Gilmoreosaurus
Gryposaurus
Maiasaura
Brachylophosaurus
Edmontosaurus
Anatotitan
Prosaurolophus
Saurolophus
Bactrosaurus
Eolambia
Parasaurolophus
Lambeosaurus
Corythosaurus
Hypacrosaurus