Albert Prieto-Márquez, Jonathan R. Wagner, Phil R. Bell i Luis M. Chiappe. The late-surviving ‘duck-billed’ dinosaur Augustynolophus from the upper Maastrichtian of western North America and crest evolution in Saurolophini. „Geological Magazine”. 152 (2), s. 225–241, 2015. DOI: 10.1017/S0016756814000284.
Terry A. Gates, Sampson, Scott D.. A new species of Gryposaurus (Dinosauria: Hadrosauridae) from the late Campanian Kaiparowits Formation, southern Utah, USA. „Zoological Journal of the Linnean Society”. 151 (2), s. 351–376, 2007. DOI: 10.1111/j.1096-3642.2007.00349.x.
Raymond R. Rogers. Taphonomy of three dinosaur bone beds in the Upper Cretaceous Two Medicine Formation of northwestern Montana: Evidence for drought-related mortality. „Palaios”. 5 (5), s. 394–413, 1990. DOI: 10.2307/3514834.