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Revista mexicana de ciencias geológicas
versión On-line ISSN 2007-2902versión impresa ISSN 1026-8774
Resumen
PORRAS-MUZQUIZ, Hector Gerardo y LEHMAN, Thomas M. A ceratopsian horncore from the Olmos Formation (early Maastrichtian) near Múzquiz, Mexico. Rev. mex. cienc. geol [online]. 2011, vol.28, n.2, pp.262-266. ISSN 2007-2902.
An isolated supraorbital horncore collected from the Olmos Formation near Múzquiz is among the longest ever found, and records the presence in this area of a very large ceratopsid. The specimen probably pertains to a chasmosaurine, but differs significantly from the horncores in Coahuilaceratops known from the nearby Cerro del Pueblo Formation, and cannot be attributed with confidence to any other known ceratopsid.
Palabras llave : ceratopsian; Cretaceous; Olmos Formation; Mexico.