Abstract
“thick head,” a suborder of relatively small ornithischian dinosaurs; bipedal and generally herbivorous, they are characterized by a very thick skull roof; they include the genera Stegoceras, Troodon, Pachycephalosaurus, and possibly Dracorex; North America and Asia, Late Cretaceous.
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Carlton, R.L. (2018). P. In: A Concise Dictionary of Paleontology. Springer, Cham. https://doi.org/10.1007/978-3-319-73055-4_16
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DOI: https://doi.org/10.1007/978-3-319-73055-4_16
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