P. J. Currie and D. J. Varricchio. 2004. A new dromaeosaurid from the Horseshoe Canyon Formation (Upper Cretaceous) of Alberta, Canada. Feathered Dragons. Indiana University Press, Bloomington
D. A. Burnham, K. L. Derstler, and P. J. Currie, R. T. Bakker, Z. Zhou, J. H. Ostrom. 2000. Remarkable new birdlike dinosaur (Theropoda: Maniraptora) from the Upper Cretaceous of Montana. University of Kansas Paleontological Contributions 13:1-14