Dodt, Eberhard. The Parietal Eye (Pineal and Parietal Organs) of Lower Vertebrates. Visual Centers in the Brain. Handbook of Sensory Physiology. 7 / 3 / 3 B. Springer, Berlin, Heidelberg. 1973: 113–140. ISBN 9783642654978. doi:10.1007/978-3-642-65495-4_4(英语).
Gundy, GC; Wurst, GZ. The occurrence of parietal eyes in recent Lacertilia (Reptilia). Journal of Herpetology. 1976, 10 (2): 113–121. JSTOR 1562791. doi:10.2307/1562791.