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COAHUILACERATOPS

a herbivorous chasmosaurine ceratopsid dinosaur from the Late Cretaceous of North America.
image
Pronunciation: Ko-WEY-lah-SEH-ruh-tops
Meaning: Coahuila horn face
Author/s: Loewen et al. (2010)
Synonyms: None known
First Discovery: Coahuila, Mexico
Chart Position: 577

Coahuilaceratops magnacuerna

Coahuilaceratops was the first ceratopsian—and, in fact, only the fourth ever dinosaur of any stamp—from Mexico to be named and described in the scientific literature, and it's a cracker. Although incomplete, it is being heralded as the horniest dinosaur discovered thus far as its proud appendages—thicker and longer than in any other known ceratopsid (herbivorous and horned dinosaur)—were even longer than the face to which they are attached. In contrast to its 1.2 meter long brow horns, the nose horn of Coahuilaceratops was modest to say the least. But it was also unique among chasmosaurines—the ceratopsid family that also includes the like of Triceratops and Torosaurus—in being stumpy and rounded.

Coahuilaceratops was discovered in 2001 near the town of Porvenir de Jalpa, approximately 40 miles west of Saltillo, and was excavated in 2003, but it wasn't alone. A juvenile of the same species was also discovered along with a plethora of bones belonging to duck-billed dinosaurs—one of which was recently named Velafrons coahuilensis, one large tyrannosaur-type carnivore and some smaller Velociraptor-like predators. In the same quarry, paleontologists found the remains of two more as yet unidentified ceratopsians too, which took the total number of horned dinosaur discoveries in 2010 to... oooh... loads!
(Great-horned Coahuila horn face)Etymology
Coahuilaceratops is derived from "Coahuila" (the Mexican state where it was found), and the Greek "keras" (horn) and "ops" (face).
The species epithet, magnacuerna (mag-NAH-KWER-na), is a mash-up of Latin and Spanish, and means "great horn," in reference to its huge brow horns.
The name was initially published, albeit unofficially, on a Mexican news site in 2008.
Discovery
The first remains of Coahuilaceratops were discovered in the Cerro del Pueblo Formation of the Difunta Group, Parras Basin within the state of Coahuila, Mexico by Claudio de Leon in 2001. It was excavated in 2003 and took another two years of meticulous work by volunteer preparator Jerry Golden before it was ready to study.
The holotype (CPC 276, housed at the Museum of the Desert in Saltillo, Mexico) is a partial skull. Remains of a juvenile animal of the same species (CPC 277) were also found at the site.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 80-73 mya
Stats:
Est. max. length: 8 meters
Est. max. hip height: 3 meters
Est. max. weight: 4.5 tons
Diet: Herbivore
References
• M.A. Loewen, S.D. Sampson, E.K. Lund, A.A. Farke, C.A. de Leon, D.A. Eberth, M.A. Getty, M.C. Aguillón-Martínez, R.A. Rodríguez-de la Rosa (2010) "Horned Dinosaurs of the Upper Cretaceous Cerro del Pueblo Formation, Coahuila, Mexico" in "New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium".
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To cite this page:
Atkinson, L. "COAHUILACERATOPS :: from DinoChecker's dinosaur archive".
›. Web access: 19th Oct 2017.
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