(Igaunodon,(Eolambia,(Telmatosaurus,(Corythosaurus,(Lophorothon,((Naashoibitosaurus,((Brachylophosaurus,Maiasaura),(Gryposaurus_notabilis,G_incurvimanus,G_latidens,G_monumentensis))),(Edmontosaurus_spp,(Prosaurolophus_spp,Saurolophus_spp))))))));