Schmitz, L.; Motani, R. (2011). «Nocturnality in Dinosaurs Inferred from Scleral Ring and Orbit Morphology». Science332. PMID21493820. doi:10.1126/science.1200043.
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Schmitz, L.; Motani, R. (2011). «Nocturnality in Dinosaurs Inferred from Scleral Ring and Orbit Morphology». Science332. PMID21493820. doi:10.1126/science.1200043.