Classification of Prieto-Márquez et al. 2006
†Orthomerus dolloi Seeley 1883
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G. †Iguanodon Mantell 1825
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†Iguanodon atherfieldensis Hooley 1925
†Iguanodon bernissartensis Boulenger 1881
Superfm. †Hadrosauroidea Huene 1954
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Fm. †Hadrosauridae Cope 1869 [hadrosaurid]
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Subfm. †Lambeosaurinae Parks 1923 [lambeosaurine]
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G. †Hypacrosaurus Brown 1913
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†Hypacrosaurus altispinus Brown 1913
†Hypacrosaurus stebingeri Horner and Currie 1994
G. †Parasaurolophus Parks 1922
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†Parasaurolophus cyrtocristatus Ostrom 1961
†Parasaurolophus tubicen Wiman 1931