Creisler, B.S. (September 1992). "Why Monoclonius Cope Was Not Named for Its Horn: The Etymologies of Cope's Dinosaurs". Journal of Vertebrate Paleontology. 12 (3): 313–317. doi:10.1080/02724634.1992.10011462. JSTOR4523455.
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Creisler, B.S. (September 1992). "Why Monoclonius Cope Was Not Named for Its Horn: The Etymologies of Cope's Dinosaurs". Journal of Vertebrate Paleontology. 12 (3): 313–317. doi:10.1080/02724634.1992.10011462. JSTOR4523455.