Coronosaurus is a genus of centrosaurine ceratopsian dinosaurs which lived in the Late Cretaceous, in the middle Campanian stage. Its remains, two bone beds, were discovered by Phillip J. Currie in the Oldman Formation of Alberta, Canada, and its type and only species, Coronosaurus brinkmani, was first described in 2005, as a new species within the genus Centrosaurus. Later studies questioned the presence of a direct relationship, and in 2012 it was named as a separate genus. Coronosaurus means "crowned lizard", coming from "corona", Latin for crown, and "sauros", Greek for lizard; this name refers to the unique, crown-like shape of the horns on the top of its frill.[1][2]
Like other ceratopsids, Coronosaurus had a large frill and horns on its head. These include a small pair of brow horns over its eyes, a large nasal horn on its snout, and, unique among ceratopsians, irregular, spiky bone masses on its frill.[1] Growing up to around 5 metres (16 ft) long and 2 tonnes (2.0 long tons; 2.2 short tons) in weight, it was mid-sized for its kind.[3] The genus is classified as a member of the Centrosaurini, a group of derived centrosaurines which has also been found include taxa such as Styracosaurus, Spinops, Rubeosaurus, and Centrosaurus, the genus it was originally placed within.[4]
^ abRyan, M. J.; Evans, D. C.; Shepherd, K. M.; Sues, H. (2012). "A new ceratopsid from the Foremost Formation (middle Campanian) of Alberta". Canadian Journal of Earth Sciences. 49 (10): 1251. Bibcode:2012CaJES..49.1251R. doi:10.1139/e2012-056.
^Ryan, M. J.; Russell, A. P. (2005). "A new centrosaurine ceratopsid from the Oldman Formation of Alberta and its implications for centrosaurine taxonomy and systematics". Canadian Journal of Earth Sciences. 42 (7): 1369. Bibcode:2005CaJES..42.1369R. doi:10.1139/e05-029. hdl:1880/47001.
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as is known Coronosaurus resembles its relatives Centrosaurus and Styracosaurus in its morphology. For example, the nasal of Coronosaurus closely resembles...
epidermis, which grew at a sideways angle similar to the curved horncores of Coronosaurus, as indicated by the orientation of the "fins" or ridges on the bosses...
species C. brinkmani, described in 2005, was moved to the new genus Coronosaurus in 2012. Centrosaurus were large dinosaurs, although not as large as...
alongside the ceratopsians Albertaceratops, Anchiceratops, Chasmosaurus, Coronosaurus, and Wendiceratops, as well as the dromaeosaurids Dromaeosaurus, Saurornitholestes...
Albertaceratops and the much taller horns of derived centrosaurines such as Coronosaurus, Centrosaurus and Styracosaurus. This would imply that the also long...
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