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Reptilia - Hadrosauridae
It was replaced with Hadrosaurinae by Lambe (1918), Gilmore (1919), Lambe (1920) and Riabinin (1930); it was synonymized subjectively with Lambeosaurinae by Sternberg (1936).
It was assigned to Iguanodontidae by Tornier (1913); and to Trachodontidae by Brown (1914), Parks (1920), Nopcsa (1923), Nopcsa (1928), Huene (1934), Huene (1934) and Kuhn (1946).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.