Crittendenceratops Temporal range: Campanian, | |
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Life reconstruction of C. krzyzanowskii | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | † Ornithischia |
Family: | † Ceratopsidae |
Subfamily: | † Centrosaurinae |
Tribe: | † Nasutoceratopsini |
Genus: | † Crittendenceratops Dalman et al., 2018 |
Species: | †C. krzyzanowskii |
Binomial name | |
†Crittendenceratops krzyzanowskii Dalman et al., 2018 | |
Crittendenceratops (meaning "horned face from the Fort Crittenden Formation") 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 species of dinosaur from the Fort Crittenden Formation to receive a formal scientific name.
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. [1]
Crittendenceratops was assigned to the Nasutoceratopsini (which also includes Avaceratops, Nasutoceratops, and Yehuecauhceratops), a tribe of the ceratopsid subfamily Centrosaurinae, by Dalman et al. (2018). The cladogram below follows their phylogenetic analysis: [1]
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