John B. Scannella; John R. Horner (July 2010). "Torosaurus Marsh, 1891, is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): synonymy through ontogeny". Journal of Vertebrate Paleontology. 30 (4): 1157–1168. Bibcode:2010JVPal..30.1157S. doi:10.1080/02724634.2010.483632. S2CID86767957.
John B. Scannella; John R. Horner (July 2010). "Torosaurus Marsh, 1891, is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): synonymy through ontogeny". Journal of Vertebrate Paleontology. 30 (4): 1157–1168. Bibcode:2010JVPal..30.1157S. doi:10.1080/02724634.2010.483632. S2CID86767957.
John B. Scannella; John R. Horner (July 2010). "Torosaurus Marsh, 1891, is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): synonymy through ontogeny". Journal of Vertebrate Paleontology. 30 (4): 1157–1168. Bibcode:2010JVPal..30.1157S. doi:10.1080/02724634.2010.483632. S2CID86767957.