[R] Callaway
Callaway, J.M. & Brinkman, D.B. (1989). Ichtyosaurs (Reptilia, Ichtyosauria) from the Lower and Middle Triassic Sulphur Mountain Formation, Wapiti Lake area, British Columbia, Canada. Can. J. Earth Sci. 26: 1491-1500.
Callaway, J.M. and J.A. Massare (1989) Shastasaurus altispinus (Ichthyosauria, Sastasauridae) from the Upper Triassic of El Antimonio District, Northwestern Sonora, Mexico. Journal of Paleontology, 63, pp. 930-939.