Crittendenceratops

Crittendenceratops is a genus of horned centrosaurine ceratopsid dinosaur from the late Campanian Fort Crittenden Formation of Arizona. It contains a single species, C. krzyzanowskii, and represents the first dinosaur taxon from that formation to receive a formal scientific name.

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Description

Crittendenceratops is distinguished by forward-curving, hook-like flanges located along the central portion of the top of the frill, "extensive" epiparietals located along the sides of the parietal portion of the frill, a thickening of the frill in the parietal portion, and a short, pronounced ridge on the surface of the squamosal portion of the frill.

Classification

Crittendenceratops was assigned to the Nasutoceratopsini, a tribe of the ceratopsid subfamily Centrosaurinae, by Dalman et al.. The cladogram below follows their phylogenetic analysis: