Classification of Winkler et al. 1997
Fm. †Hypsilophodontidae Dollo 1882 [hypsilophodontid]
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G. †Hypsilophodon Huxley 1870
G. †Orodromeus Horner and Weishampel 1988
G. †Parksosaurus Sternberg 1937
G. †Thescelosaurus Gilmore 1913
Infraor. †Iguanodontia Baur 1891
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G. †Tenontosaurus Ostrom 1970
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†Tenontosaurus dossi Winkler et al. 1997
†Tenontosaurus tilletti Ostrom 1970