Entity:

Variants

Synonyms

Synonymous name	:	†*Euornithopoda* (Hypoorder) Sereno, 1986
Including	:	†*Ankylopollexia* (Megafamily) Sereno, 1986, nom. inval.
Including	:	†*Dryomorpha* (Gigafamily) Sereno, 1986
Including	:	†*Hadrosauroidea* (Superfamily) Cope, 1869
Including	:	†*Hypsilophodontia* (Infraorder) Cooper, 1985
Including	:	†*Iguanodontia* (Infraorder) Dollo, 1888
Including	:	†*Iguanodontoidea* (Hyperfamily) Hay, 1902
Including	:	†*Styracosterna* (Grandfamily) Sereno, 1986, nom. inval.