Classification of Casanovas et al. 1999
†Orthomerus dolloi Seeley 1883
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G. †Orthomerus Seeley 1883
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G. †Heterodontosaurus Crompton and Charig 1962
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†Heterodontosaurus tucki Crompton and Charig 1962
Superfm. †Hadrosauroidea Huene 1954
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Fm. †Hadrosauridae Cope 1869 [hadrosaurid]
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Invalid names: Euhadrosauria Weishampel et al. 1993 [empty]