Coahuilaceratops

Coahuilaceratops
	Skull of Coahuilaceratops , the known fragments are colored gray
Temporal occurrence
	Upper Cretaceous (late Campanium )
	approx. 72 million years
Locations
	Coahuila ( Mexico );
Systematics
	Marginocephalia
	Ceratopsia
	Neoceratopsia
	Ceratopsidae
	Chasmosaurinae
	Coahuilaceratops
Scientific name
	Coahuilaceratops
	Loewen et al., 2010
Art
	Coahuilaceratops magnacuerna;

Coahuilaceratops is a genus of the bird pelvic dinosaur (Ornithischia), which isassigned tothe Chasmosaurinae . In 2010 it was introduced by Loewen et al. and named after the Mexican state of Coahuila ("Coahuila Horn Face"), in which it was found in the Cerro del Pueblo Formation in rocks from the Upper Cretaceous ( Campanium ).

Coahuilaceratops was a larger representative of the Ceratopsidae with a possible length of 6.7 meters . Estimates of the weight are four to five tons . The horns sitting on the more than 1.8 meter long skull are specified with a length of 1.2 meters, which means that it could have had the longest horns of all known dinosaurs .

Coahuilaceratops moved four-legged ( quadruped ) and was a herbivore ( herbivore ).

Systematics

The type species is Coahuilaceratops magnacuerna . According to a phylogenetic analysis by Loewen et al. are Anchiceratops and arrhinoceratops closely related to him. Sampson et al. place Coahuilaceratops in a cladogram as shown below:

Coahuilaceratops

	Cosmoceratops

	Vagaceratops

	Anchiceratops

	Arrhinoceratops

Individual evidence

^ ^A ^b Mark A. Loewen, Scott D. Sampson, Eric K. Lund, Andrew A. Farke, Martha C. Aguillón-Martínez, CA De Leon, Ruben A. Rodriguez De La Rosa, Michael A. Getty, David A. Eberth: Horned dinosaurs (Ornithischia: Ceratopsia) from the Upper Cretaceous (Campanian) Cerro del Pueblo Formation, Coahuila, Mexico. In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, David A. Eberth: New Perspectives on Horned Dinosaurs. The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington IN et al. 2010, ISBN 978-0-253-35358-0 , pp. 99-116.
^ First horned dinosaur from Mexico , accessed September 24, 2014.
↑ Scott D. Sampson, Mark A. Loewen, Andrew A. Farke, Eric M. Roberts, Catherine A. Forster, Joshua A. Smith, Alan L. Titus: New Horned Dinosaurs from Utah Provide Evidence for Intracontinental Dinosaur Endemism. In: PLoS ONE . Vol. 5, No. 9, 2010, e12292, doi : 10.1371 / journal.pone.0012292 .

Web links

Commons : Coahuilaceratops - collection of images, videos and audio files

[Loewen-1] A ^b Mark A. Loewen, Scott D. Sampson, Eric K. Lund, Andrew A. Farke, Martha C. Aguillón-Martínez, CA De Leon, Ruben A. Rodriguez De La Rosa, Michael A. Getty, David A. Eberth: Horned dinosaurs (Ornithischia: Ceratopsia) from the Upper Cretaceous (Campanian) Cerro del Pueblo Formation, Coahuila, Mexico. In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, David A. Eberth: New Perspectives on Horned Dinosaurs. The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington IN et al. 2010, ISBN 978-0-253-35358-0 , pp. 99-116.

[2] First horned dinosaur from Mexico , accessed September 24, 2014.

[PLOS-3] Scott D. Sampson, Mark A. Loewen, Andrew A. Farke, Eric M. Roberts, Catherine A. Forster, Joshua A. Smith, Alan L. Titus: New Horned Dinosaurs from Utah Provide Evidence for Intracontinental Dinosaur Endemism. In: PLoS ONE . Vol. 5, No. 9, 2010, e12292, doi : 10.1371 / journal.pone.0012292 .