Turtles bibliography

Parks, W. A., 1933, New species of dinosaurs and turtles from the Upper Cretaceous Formations of Alberta: University of Toronto Studies, Geological Series, v. 34, p. 1-19.

Zangeri, R., 1969, The Turtle Shell, in Gans, C., ed., Biology of the Reptilia: London and New York, Academic Press, v. 1 [Morphology A], p. 311- 339.