Dodson, P.; Forster, C.A.; Sampson, S.D. (2004). "Ceratopsidae". In Weishampel, David B.; Dodson, Peter; Osmo´lska, Halszka (eds.). The dinosauria. Berkeley, Calif.: University of California Press. pp.494–513. ISBN 978-0-520-94143-4. OCLC 801843269. . In phylogenetic taxonomy, the genus Triceratops has been used as a reference point in the definition of Dinosauria. Dinosaurs have been designated as all descendants of the most recent common ancestor of Triceratops and modern birds. [48] Furthermore, Ornithischia has been defined as those dinosaurs more closely related to Triceratops than to modern birds. [49] Paleobiology [ edit ] A Triceratops mounted next to a Tyrannosaurus at the Los Angeles Natural History Museum Tait, J.; Brown, B. (1928). "How the Ceratopsia carried and used their head". Transactions of the Royal Society of Canada. 22: 13–23.

Dinosaur games frequently crossover with other popular game types. Destruction and survival games are a common crossover theme with many dinosaur games. There's also lighter retro-style platform games.Bearing a large bony frill, three horns on the skull, and a large, four-legged body, exhibiting convergent evolution with bovines and rhinoceroses, Triceratops is one of the most recognizable of all dinosaurs and the best-known ceratopsian. It was also one of the largest, up to 8–9 metres (26–30ft) long and 5–9 metric tons (5.5–9.9 short tons) in body mass. It shared the landscape with and was most likely preyed upon by Tyrannosaurus, though it is less certain that two adults would battle in the fanciful manner often depicted in museum displays and popular media. The functions of the frills and three distinctive facial horns on its head have inspired countless debates. Traditionally, these have been viewed as defensive weapons against predators. More recent interpretations find it probable that these features were primarily used in species identification, courtship, and dominance display, much like the antlers and horns of modern ungulates. In 1887, the first bones of a Triceratopswere discovered in Denver and were sent to Othniel Charles Marsh. At first, Marsh believed it was a bison. It wasn't until more Triceratops bones were found in 1888 that Marsh gave the beast the name Triceratops.

Holtz, Thomas R. Jr. (2012). Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages (PDF). Winter 2011 AppendixHorner, JR; Goodwin, MB (2009). "Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur Pachycephalosaurus". PLOS ONE. 4 (10): e7626. Bibcode: 2009PLoSO...4.7626H. doi: 10.1371/journal.pone.0007626. PMC 2762616. PMID 19859556. Scannella, J. B.; Horner, J. R. (2011). Claessens, Leon (ed.). " 'Nedoceratops': An Example of a Transitional Morphology". PLOS ONE. 6 (12): e28705. Bibcode: 2011PLoSO...628705S. doi: 10.1371/journal.pone.0028705. PMC 3241274. PMID 22194891.

a b c Hatcher, J. B.; Marsh, O. C.; Lull, R. S. (1907). The Ceratopsia. Washington, D.C.: Government Printing Office. ISBN 978-0-405-12713-7. Triceratops skeleton displayed at the Carnegie Museum of Natural History in Pittsburgh, Pennsylvania. Richard Cummins / Getty Images They would probably have similar dietary needs as well, but with vegetation more closely related to the plants they fed on 68 million years ago. Of course, this is all speculation, as these creatures could not be kept in any zoological institution today because they are extinct. Behavior of the Triceratops a b Forster, C. A. (1990). The cranial morphology and systematics of Triceratops , with a preliminary analysis of ceratopsian phylogeny (Ph.D. Dissertation thesis). Philadelphia: University of Pennsylvania. p.227. Lull, R. S. (1908). "The cranial musculature and the origin of the frill in the ceratopsian dinosaurs". American Journal of Science. 4 (25): 387–399. Bibcode: 1908AmJS...25..387L. doi: 10.2475/ajs.s4-25.149.387. Archived from the original on November 15, 2019 . Retrieved June 12, 2019.a b Mathews, Joshua C.; Brusatte, Stephen L.; Williams, Scott A.; Henderson, Michael D. (2009). "The first Triceratops bonebed and its implications for gregarious behavior". Journal of Vertebrate Paleontology. 29 (1): 286–290. Bibcode: 2009JVPal..29..286M. doi: 10.1080/02724634.2009.10010382. S2CID 196608646.