Its forelimbs, ossified tendons, and skin impressions were briefly described in 1913 and 1914 by Lambe, who at first thought it was an example of a species he had named Trachodon marginatus, but then changed his mind.
Njegovi prednji udovi, okoštale tetive i otisci kože su kratko opisani 1913. i 1914. godine od strane Lambea, koji je u početku mislio da je to bio primjerak vrste koju je nazvao Trachodon marginatus, ali je poslije promijenio mišljenje.