Genus: Coahuilaceratops LOEWEN, SAMPSON, LUND, FARKE, AGUILLON-MARTINEZ, DE LEON, RODRIGUEZ-DE LA ROSA, GETTY & EBERTH, 2010
Etymology: In reference Coahuila the state of discovery in northeast Mexico, and Greek, ceratops, "horned face."

Species: magnacuerna LOEWEN, SAMPSON, LUND, FARKE, AGUILLON-MARTINEZ, DE LEON, RODRIGUEZ-DE LA ROSA, GETTY & EBERTH, 2010
Etymology: Latin, magna, "great," and Spanish, cuerna, "horn," in reference to the very large supraorbital horncores of this taxon.

Holotype: CPC 276

Locality: Monodominat bonebed of two individuals in the Parras Basin, near the town of Porvenir de Jalpa, approximately 70 km west of Saltillo, Coahuila State, Mexico.

Note: Exact locality information is on file at the Museo del Desierto, Saltillo, Coahuila.

Horizon: Cerro Huerta Formation, Difunta Group as per GUEVARA, CHAVEZ, BANAS, de LEON DAVILA, MARTINEX, FOWLER & FOWLER, 2924 (originally Middle Cerro del Pueblo Formation, Basal Difunta Group, Gulfian-Midwayan).

Biostratigraphy:

Age: Early Maastrichtina Stage (orginally Campanian Stage), Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Rostral, left premaxilla, right maxilla, fused nasals, partial left and right supraorbital horncores, part of the parietosquamosal frill, predentary, both dentaries, and unprepared postcranial elements.

Referred material:

CPC 277: Disarticulated elements representing a single juvenile individual, including a predentary, dentary, and unprepared postcranial elements.

 RAMIREZ-VELASCO, & HERNANDEZ-RIVERA, 2015

REG615PF, not given: Metaarpals and metatarsal fragments.

REG615PF not given Cervical and dorsal vertebrae.

REG615PF, not given: Dorsal and caudal vertebrae, partial ulna and tibia shaft.