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Topic: Ceratopsia

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	Ceratopsia - Wikipedia, the free encyclopedia
		Ceratopsia (Greek: "horned faces") is a group of herbivorous, beaked dinosaurs which thrived in what are now North America and Asia, during the Cretaceous Period, although ancestral forms lived earlier, in the Jurassic.
		This triangular appearance is accentuated, in later ceratopsians, by the rearwards extension of the parietal and squamosal bones of the skull roof, to form the neck frill.
		Ceratopsia was coined by Othniel Charles Marsh in 1890 to include animals related to Ceratops.
	en.wikipedia.org /wiki/Ceratopsia (1918 words)

	DinoDatabase.com :: Discovery and Classification \| Ceratopsia
		Ceratopsia (sair-uh-TOP-see-ah) means “horned face,” and the quadrupedal members of this infraorder of suborder Marginocephalia sported various numbers and lengths of horns sprouting from their heads.
		The horns may have been used for defense against predators such as Tyrannosaurus, and also for interacting with members of its own species, in ways similar to the behavior of present-day deer or antelope.
		Styracosaurus, a relatively small ceratopsian weighing about three tons, was distinguished by a massive, elongated skull that was pointed at the front and extended back to form a distinctive neck frill ornamented with long, tapering spikes.
	www.dinodatabase.com /dinoclas07.asp (162 words)

	Lec. 9 - The horned dinosaurs
		The Ceratopsia are outlined in blue (Slightly modified from Dingus and Rowe, 1997).
		The fossil evidence indicates that Ceratopsia arose in Asia during the early Cretaceous and later migrated to North America.
		The return to the tetrapod primitive condition of quadrapedality (even though the primitive condition for dinosaurs and Ceratopsia is bipedality) is secondary in nature.
	www.wvup.edu /ecrisp/lec9thehorneddinosaurs.html (1537 words)

	Ceratopsians (Site not responding. Last check: 2007-11-04)
		The ceratopsia are the horned dinosarus, important herbivores of the late cretaceous.
		Protoceratopsidas have flaring jugals and at least rudimentary parieto-squamosal frills; most lack true horn cores, but all share a number of derived characters with ceratopsids first among which is the rostral bone in front of the premaxilla, a character found in no other dinosaur.
		Psittacosaurus from the early cretaceous of Mongolia was a small ornithopod-like biped that lacked both a frill and horns of any kind, but whose face was otherwise remarkably ceratopsian in appearance, including a toothless beak and flaring jugals.
	www.bway.net /~noel/paleo/ceratopsians.html (218 words)

	†Ceratopsia (via CobWeb/3.1 planetlab1.netlab.uky.edu) (Site not responding. Last check: 2007-11-04)
		<==o †Ceratopsia Marsh, 1890 (sarvinaamat; horned dinosaurs) -- †Chaoyangsaurus youngi Zhao, Cheng and Xu, 1999 ["Chaoyangsauridae"] `--+-- †Psittacosauria Osborn, 1923 `--o †Neoceratopsia Sereno, 1991 [Neoceratopia] -- †Liaoceratops yanzigouensis Xu, Makovichy, Wang, Norell and You, 2002 `--+-- †Archaeoceratops oshimai Dong and Azuma, 1997 ["Archaeoceratopidae"] `--+--o †“Leptoceratopsidae”
		Chinnery, B. and Weishampel, D. Montanoceratops cerorhynchus (Dinosauria: Ceratopsia) and relationships among basal neoceratopsians.
		Xu, X., Makovichy, P. J., Wang, X.-l., Norell, M. and You, H.-l., 2002: A ceratopsian dinosaur from China and the early evolution of Ceratopsia.
	www.fmnh.helsinki.fi.cob-web.org:8888 /users/haaramo/Metazoa/Deuterostoma/Chordata/Archosauria/Ornithischia/Ceratopsia.htm (421 words)

	The Horned Dinosaurs - Health Care Products - HealthCareStuff.com (Site not responding. Last check: 2007-11-04)
		From the badlands of the Red Deer River in Alberta to the Gobi Desert, Dodson pieces together fossil evidence to describe the ceratopsians themselves--their anatomy, biology, and geography--and he evokes the human dimension of their discovery and interpretation.
		Rich in fossil lore and in tales of adventure, the world of the Ceratopsia is presented here for specialists and general readers alike.
		The Horned Dinosaurs written by Peter Dodsonis a book that concerns itself strictly to a group of dinosauria known as the Ceratopsia of which Triceatops is but one of many.
	www.healthcarestuff.com /product/0691059004-The-Horned-Dinosaurs.html (1541 words)

	Literature - Ceratopsia (Site not responding. Last check: 2007-11-04)
		OSMOLSKA H. (1986): Structure of nasal and oral cavities in the protoceratopsid dinosaurs (Ceratopsia, Ornithischia).
		(Ornitischia: Ceratopsia) a new psittacosaur from the Lower Cretaceous of Northwestern China.
		(Ornitischia: Ceratopsia), a new psittcosaur from the Lower Cretaceous of Northwestern China.
	www.students.uni-mainz.de /fastm000/Literatur/Ceratopsia.html (841 words)

	Psittacosauridae
		Limb proportions suggest they were faculatively bipedal, and the hands may have had some ability to grasp food (Sereno 1990b).
		Makoviky (2001) united Psittacosaurus and Neoceratopsia in a ceratopsian clade excluding Chaoyangosaurus youngi, based on the presence of jugal horns and and a coronoid process situated lateral to the tooth row in the former taxa.
		Psittacosaurus could not have been the direct ancestor of the neoceratopsians, as the psittacosaur hand is considerably reduced in comparison to later Ceratopsia (Dodson, 1996).
	deinosaurs.mystarship.com /psittacosaurids.html (385 words)

	Ceratopsia
		The Ceratopsia were a group of ornithischian dinosaurs common in central Asia and western North America.
		It's difficult to be sure of the dates of many Psittacosaur fossils, but they probably all come from late in the first half of the Cretaceous.
		I live in Quebec, where there aren't any ceratopsia, not even in the museums: the closest is at the Canadian Museum of Nature in Ottawa, a two-hour drive away.
	alcor.concordia.ca /~grapa/ceratopsia.html (2025 words)

	Untitled Document (Site not responding. Last check: 2007-11-04)
		Pachyephalosauria are classified as thick headed lizards,they used this thick head as a battering ram.
		The other group that is in the Marginocephalia family is the Ceratopsia dinosaurs.
		They also are classified as having the bird hip trait and they are known for their horns.
	t3.preservice.org /T0211555/marginocephalia.htm (129 words)

	Ceratopsia (via CobWeb/3.1 planetlab1.netlab.uky.edu) (Site not responding. Last check: 2007-11-04)
		The dinosaurs in the Ceratopsia (sair-uh-TOP-see-ah) infraorder of the Marginocephalia
		Related to the Ceratopsia are the pachycephalosaurs, aka the...
		The Ceratopsia : Based on Preliminary Studies by Othniel C. Marsh / by John B. Hatcher, edited by Stephen Jay Gould.
	www.virtualology.com.cob-web.org:8888 /hallofpaleontology/CERATOPSIA.COM (260 words)

	Field Museum Staff
		Makovicky, P. Montanoceratops cerorhynchus (Dinosauria: Ceratopsia) braincase from the Maastrichtian Horseshoe Canyon Formation of Alberta, Canada; in Tanke, D. and K. Carpenter (eds.) Mesozoic Terrestrial Life.
		Naive falsification and the origin of birds.Gauthier, J. (ed.) "New Perspectives on the Origin and Evolution of Birds: Proceedings of the International Symposium in Honor of John H. Ostrom".
		A ceratopsian dinosaur from China and the early evolution of Ceratopsia.
	fm1.fieldmuseum.org /aa/staff_page.cgi?staff=pmakovicky (466 words)

	Ceratopsia - EvoWiki (Site not responding. Last check: 2007-11-04)
		Autapomorphies of the clade Ceratopsia include (after Sereno 1986, Dodson et al 1990, Dodson 1996):
		Ceratopsia first appears in the later Lower Cretaceous, and persisted until the latest Maastrichtian, and is represented by one of the best and most complete fossil records for any dinosaur taxon.
		This page was last modified 22:45, 29 September 2003.
	wiki.cotch.net /index.php?title=Ceratopsia&printable=yes (73 words)

	.:Dinosauria:. (Site not responding. Last check: 2007-11-04)
		It also has the Pachycephalosauria group, with "adornments" totally different to the saw above.
		The Ceratopsia group is characterized by animals that present a "plate" in the posterior part of the head which projects over the neck and shoulders.
		In Psittacosaurus, the most primitive specie, this plate did not exist.
	www.dinosauriaong.hpg.ig.com.br /dino/ecri2.htm (762 words)

	Ceratopsian
		The Ceratopsia represent one of the last and most successful radiations of dinosaurs.
		In sheer numbers and diversity, the horned dinosaurs called the Ceratopsia are a fossil collectors delight.
		Send mail to ToadHallHQ@sbcglobal.net with questions or comments about this web site.
	www.fossils.com /ceratopsian.htm (108 words)

	REFERENCES for PENTACERATOPS
		(Ornithschia: Ceratopsia) with a description of its frill.
		Lehman, T. A new genus and species of Ceratopsia from New Mexico,
		Osborn, H. Über Ceratopsia aus der oberen Kreide in New Mexico.
	www.dinoruss.org /de_4/5c8b939.htm (78 words)

	Ceratopsia - English-French Dictionary - WordReference.com
		We found no French translation for 'Ceratopsia' in our English to French Dictionary.
		Or did you want to translate 'Ceratopsia' from French to English?
		Forum discussions with the word(s) 'Ceratopsia' in the title:
	www.wordreference.com /enfr/Ceratopsia (57 words)

	GEOL 104 Lecture 20: Marginocephalia: That's using your head!
		If so, these would be the oldest members of this lineage.
		Except for a few fragmentary specimens, all marginocephalians known fall into one or the other of two clades: the thick-skulled Pachycephalosauria or the deep-beaked (and often frilled (and sometimes horned)) Ceratopsia.
		Except for a possible Early Cretaceous form from Europe, are known only from the Late Cretaceous of Asia and western North America
	www.geol.umd.edu /~tholtz/G104/10420marg.htm (639 words)

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