* Marsh, O. C., 1878b, Principal Characters of American Jurassic Dinosaurs, Part I: American Journal of Science, 3rd series, v. 16, p. 411-416.
* "Marsh, O. C.", 1878b, Principal Characters of American Jurassic Dinosaurs, Part I: American Journal of Science, 3rd series, v. 16, p. 411—416.