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Crittendenceratops
''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 The Fort Crittenden Formation is a geological formation in Arizona whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur dis ... to receive a formal scientific name. Description ''Crittendenceratops'' is distinguished by forward-curving, hook-like flanges located along the central portion of the top of the frill, "extensive" Ceratopsia#Anatomy, epiparietals located along the sides of the parietal bone, parietal portion of the frill, a thickening of the frill in the parietal portion, and a short, pronounced ridge on the surface of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crittendenceratops Size
''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. 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 (which also includes ''Avaceratops'', ''Nasutoceratops'', and ''Yehuecauhceratops''), a tribe of the ceratopsid subfamily Centrosaurinae, by Dalman ''et al.'' (2018). The clado ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Crittenden Formation
The Fort Crittenden Formation is a geological formation in Arizona whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): ''The Dinosauria'', 2nd, Berkeley: University of California Press. pp. 574–88. . Vertebrate paleofauna Amphibians Archosaurs Bony fishes Cartilaginous fishes Lepidosaurs Teiid and anguid lizards are known from the formation. Turtles See also * List of dinosaur-bearing rock formations This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented. Containing body fossils * List of stratigraphic units with dinosaur body fossils ** List of stratigraphic units with few ... Footnotes References * Sullivan, R.M., and Lucas, S.G. 2006.The Kirtland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasutoceratopsini
Centrosaurinae (from the Greek, meaning "pointed lizards") is a subfamily of ceratopsid dinosaurs, a group of large quadrupedal ornithischians. Centrosaurine fossil remains are known primarily from the northern region of Laramidia (modern day Alberta, Montana, and Alaska) but isolated taxa have been found in China and Utah as well. Defining features of centrosaurines include a large nasal horn, short supratemporal horns, and an ornamented frill projecting from the back of the skull. With the exception of ''Centrosaurus apertus'', all adult centrosaurines have spike-like ornaments midway up the skull. Morphometric analysis shows that centrosaurines differ from other ceratopsian groups in skull, snout, and frill shapes. There is evidence to suggest that male centrosaurines had an extended period of adolescence, and sexual ornamentation did not appear until adulthood. Centrosaurinae was named by paleontologist Lawrence Lambe in 1915, with ''Centrosaurus'' as the type genus. The cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yehuecauhceratops Mudei
''Yehuecauhceratops'' (meaning "ancient horned face") is a genus of horned centrosaurine ceratopsid dinosaur from the Late Cretaceous of Coahuila, Mexico. It contains a single species, ''Y. mudei'', described from two partial specimens by Rivera-Sylva ''et al.'' in 2016 and formally named by Rivera-Sylva ''et al.'' in 2017. It was a small centrosaurine with a body length of , making it smaller than ''Agujaceratops'' and '' Coahuilaceratops'', the other two ceratopsids in its environment; the three may have been ecologically segregated. A ridge bearing a single roughened projection near the bottom of the squamosal bone, which probably supported a small horn, allows ''Yehuecauhceratops'' to be distinguished from other centrosaurines. Its affinities to nasutoceratopsin centrosaurines, such as ''Avaceratops'' and ''Nasutoceratops'', are supported by various morphological similarities to the former. Discovery and naming Specimens of ''Yehuecauhceratops'' were recovered during excav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
