Emily Buchholtz, Thomas R., Jr. Holtz, James O. Farlow e Bob Walters, The complete dinosaur, a cura di M.K. Brett-Surman, 2nd, Bloomington, Ind., Indiana University Press, p. 201, ISBN 978-0-253-00849-7. URL consultato il 27 febbraio 2013.
«Proportions and anatomy of endocasts of Stegosaurus vary little from those of ancestral archosaurs, with an elongated shape, large olfractory lobes, and extremely narrow cerebral hemispheres. Lack of surface detail suggest that the brain did not fill the braincase. EQ estimates are below 0,6 (Hoppson, 1977), agreeing well with predictions of a slow herbivorous lifestyle.»