Triceratops: References & Edit History
More Articles On This Topic
Additional Reading
The dinosaur genus Triceratops is considered in O.C. Marsh, “Notice of Gigantic Horned Dinosauria from the Cretaceous,” American Journal of Science, 38:173–175 (1889); Peter Dodson, The Horned Dinosaurs (1998); J.R. Horner and C. Marshall, “Keratinous Covered Dinosaur Skulls,” Journal of Vertebrate Paleontology, 22(3):67A (2002); J.R. Horner and M.B Goodwin, “Major Cranial Changes During Triceratops Ontogeny,” Proceedings of the Royal Society, 273:2757–61 (2006); J.B. Scannella and J.R. Horner, “Torosaurus Marsh, 1891, Is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): Synonymy Through Ontogeny,” Journal of Vertebrate Paleontology, 30:1157–68 (2010); J.C. Matthews et al., “The First Triceratops Bonebed and Its Implications for Gregarious Behavior,” Journal of Vertebrate Paleontology, 29(1):286–290 (2009); A.A. Farke, “Anatomy and Taxonomic Status of the Chasmosaurine Ceratopsid Nedoceratops hatcheri from the Upper Cretaceous Lance Formation of Wyoming, U.S.A.,” PLoS ONE, 6(1) (2011); and N.R. Longrich and D.J. Field, “Torosaurus Is Not Triceratops: Ontogeny in Chasmosaurine Ceratopsids as a Case Study in Dinosaur Taxonomy,” PLoS ONE, 7(2) (2012).
Article Contributors
Primary Contributors
-
John B. Scannella
Ph.D. candidate in the Department of Earth Sciences at Montana State University, Bozeman, Montana.
-
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Modified link of Web site: National Center for Biotechnology Information - PubMed Central - Endocranial anatomy of the ceratopsid dinosaur Triceratops and interpretations of sensory and motor function. | Jul 23, 2026 | ||
| Add new Web site: The Canadian Encyclopedia - Triceratops. | Jun 10, 2026 | ||
| Add new Web site: National Center for Biotechnology Information - PubMed Central - Endocranial anatomy of the ceratopsid dinosaur Triceratops and interpretations of sensory and motor function. | Aug 07, 2025 | ||
| Add new Web site: Pennsylvania State University - CiteSeerX - Evidence of Combat in Triceratops (PDF). | Apr 16, 2025 | ||
| Media added. | Oct 18, 2024 | ||
| Add new Web site: South Dakota Geological Survey - Triceratops. | Aug 14, 2024 | ||
| Add new Web site: Nature - Histological and chemical diagnosis of a combat lesion in Triceratops. | May 13, 2024 | ||
| Add new Web site: Academia - Evolutionary trends in Triceratops from the Hell Creek Formation, Montana. | Feb 20, 2024 | ||
| Add new Web site: The Canadian Encyclopedia - Triceratops. | Dec 29, 2023 | ||
| Add new Web site: PNAS - Evolutionary trends in Triceratops from the Hell Creek Formation, Montana. | Oct 20, 2023 | ||
| Add new Web site: South Dakota Geological Survey - Triceratops. | Jul 09, 2023 | ||
| Add new Web site: ScholarWorks at Arcadia University - An Overview of the Triceratops. | May 03, 2023 | ||
| Add new Web site: Northern State University - Triceratops. | Sep 07, 2022 | ||
| Add new Web site: LiveScience - Triceratops: Facts About the Three-Horned Dinosaur. | Dec 12, 2019 | ||
| Corrected display issue. | Oct 24, 2018 | ||
| Add new Web site: National Geographic - Triceratops. | Oct 11, 2017 | ||
| Add new Web site: Kids Dinosaurs - Triceratops. | Oct 11, 2017 | ||
| Add new Web site: Easy Science for Kids - Fun Facts about Triceratops for Kids. | Oct 11, 2017 | ||
| Add new Web site: Smithsonian - National Museum of Natural History - Triceratops. | May 29, 2014 | ||
| Add new Web site: Prehistoric-Wildlife - Triceratops. | May 29, 2014 | ||
| Add new Web site: Buzzle.com - Triceratops. | Apr 29, 2013 | ||
| Add new Web site: Natural History Museum - Triceratops. | Apr 29, 2013 | ||
| New entries on Torosaurus and Nedoceratops added. | Jun 11, 2012 | ||
| Text suggesting that Nedoceratops may represent a distinct genus or a member of Triceratops with a different cranial morphology added. | Jun 11, 2012 | ||
| Add new Web site: Science Kids - Fun Science and Technology for Kids - Triceratops Facts for Kids. | Mar 16, 2012 | ||
| Text noting the debate over whether Triceratops and Torosaurus are members of the same species added. | Mar 01, 2012 | ||
| Article thoroughly revised. | Feb 17, 2011 | ||
| New bibliography added. | Feb 17, 2011 | ||
| Text added mentioning the possibility that Triceratops and Torosaurs are actually the same species. | Aug 31, 2010 | ||
| Added new Web site: Enchanted Learning - Triceratops. | Oct 21, 2008 | ||
| Added new Web site: Lonely Planet - San Antonio, Texas, United States. | Sep 05, 2008 | ||
| Added new Web site: Animal Planet - Triceratops. | Jun 02, 2008 | ||
| Added new Web site: Enchanted Learning - Triceratops. | Mar 18, 2008 | ||
| Article revised. | Sep 27, 2002 | ||
| Article added to new online database. | May 27, 1999 |