Classification of Zhang et al. 2019

Unr. †Ornithischia Seeley 1888 [ornithischian]
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Unr. †Ornithopoda Marsh 1881 [ornithopod]
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Superfm. †Hadrosauroidea Huene 1954
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Fm. †Hadrosauridae Cope 1869 [hadrosaurid]
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Subfm. †Saurolophinae Brown 1914
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G. †Laiyangosaurus Zhang et al. 2019
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†Laiyangosaurus youngi Zhang et al. 2019