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Reptilia - Hadrosauridae
It was recombined as Trachodon calamarius by Hay (1902) and Huene (1927); it was considered a nomen dubium by Lull and Wright (1942); it was considered a nomen dubium by Coombs (1988), Weishampel and Horner (1990) and Horner et al. (2004).
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