^Nesbitt, Sterling J.; Irmis, Randall B.; and Parker, William G. (2007). “A critical re-evaluation of the Late Triassic dinosaur taxa of North America”. Journal of Systematic Palaeontology5 (2): 209–243. doi:10.1017/S1477201907002040.
^Glut, D.F. (1997). “Excluded Genera”. Dinosaurs: The Encyclopedia. McFarland & Company. pp. 1005–1010. ISBN0-89950-917-7
^Russell, Dale A. (1989). An Odyssey in Time: Dinosaurs of North America. Minocqua, Wisconsin: NorthWord Press, Inc.. p. 26. ISBN1-55971-038-1