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Lehman, 2010Lehman, TM (2010). «Pachycephalosauridae from the San Carlos and Aguja Formations (Upper Cretaceous) of west Texas, and observations of the frontoparietal dome». Journal of Vertebrate Paleontology30 (30): 786-798. ISSN0272-4634. doi:10.1080/02724631003763532.
