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Centrosaurine
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
''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] |
Styracosaurus
''Styracosaurus'' ( ; meaning "spiked lizard" from the Ancient Greek / "spike at the butt-end of a spear-shaft" and / "lizard") is a genus of herbivorous ceratopsian dinosaur from the Cretaceous Period (Campanian stage), about 75.5 to 74.5 million years ago. It had four to six long parietal spikes extending from its neck frill, a smaller jugal horn on each of its cheeks, and a single horn protruding from its nose, which may have been up to long and wide. The function or functions of the horns and frills have been debated for many years. ''Styracosaurus'' was a relatively large dinosaur, reaching lengths of and weighing about . It stood about tall. ''Styracosaurus'' possessed four short legs and a bulky body. Its tail was rather short. The skull had a beak and shearing cheek teeth arranged in continuous dental batteries, suggesting that the animal sliced up plants. Like other ceratopsians, this dinosaur may have been a herd animal, travelling in large groups, as sugges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronosaurus
''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. 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. Growing up to around long and in weight, it wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wendiceratops
''Wendiceratops'' is a genus of herbivorous centrosaurine ceratopsian dinosaur from the Late Cretaceous of Canada. Discovery In 2010, Canadian fossil hunter Wendy Sloboda found a centrosaurine bonebed in the Pinhorn Provincial Grazing Reserve south of the Milk River, County of Forty Mile No. 8, Alberta. In 2011, a team of the Royal Tyrrell Museum explored the site and began excavating fossils. Next year, a deep overburden was removed. In 2013 and 2014, numerous fossils were discovered. In 2015, paleontologists David Evans and Michael Ryan named and described the type species ''Wendiceratops pinhornensis''. The generic name combines a reference to Wendy Sloboda with a Latinised Greek ~ceratops, "horn face". The specific name refers to the provenance from the Pinhorn Reserve. ''Wendiceratops'' was the second ceratopsian discovered and named in 2015. The discovery of this new horned dinosaur species - starting from the ground in Alberta, through scientific study and restoratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medusaceratops
''Medusaceratops'' is an extinct genus of centrosaurine ceratopsian dinosaur known from the Late Cretaceous Judith River Formation (middle Campanian stage) of Montana, northern United States. It contains a single species, ''Medusaceratops lokii''.Ryan, Michael J.; Russell, Anthony P., and Hartman, Scott. (2010). "A New Chasmosaurine Ceratopsid from the Judith River Formation, Montana", In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, and David A. Eberth (eds), ''New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium'', Indiana University Press, 656 pp. . Discovery The known material of ''Medusaceratops'' came from a bonebed in the badlands on the west side of Kennedy Coulee adjacent to the Milk River, in the Milk River Natural Area, near Havre, Hill County of Montana. The material was first reported by Sweeney and Boyden (1993), who considered it to represent the southernmost occurrence of ''Styracosaurus albertensis'', based on misidentified f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinoceratops
''Sinoceratops'' is an extinct genus of ceratopsian dinosaur that lived approximately 73 million years ago during the latter part of the Cretaceous Period in what is now Shandong province in China. It was named in 2010 by Xu Xing ''et al.'' for three skulls from Zhucheng, China. The name of its type species ''Sinoceratops zhuchengensis'' means "Chinese horned face from Zhucheng", after the location of its discovery. ''Sinoceratops'' was a medium-sized, averagely-built, ground-dwelling, quadrupedal herbivore. It could grow up to an estimated in length and weigh up to . It was the first ceratopsid dinosaur discovered in China, and the only ceratopsid known from Asia. All other centrosaurines, and all chasmosaurines, are known from fossils discovered in North America, except for possibly ''Turanoceratops''. ''Sinoceratops'' is also significant because it is one of the largest known centrosaurines, and is much larger than any other known basal members of this group. ''Sinocerato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrosaurus
''Centrosaurus'' ( ; ) is a genus of herbivorous ceratopsian dinosaur from the Late Cretaceous of Canada. Their remains have been found in the Dinosaur Park Formation, dating from 76.5 to 75.5 million years ago. Discovery and naming The first ''Centrosaurus'' remains were discovered and named by paleontologist Lawrence Lambe in strata along the Red Deer River in Alberta, Canada. The name ''Centrosaurus'' means "pointed lizard" (from Greek ', , "point or prickle" and ', , "lizard"), and refers to the series of small hornlets placed along the margin of their frills, not to the nasal horns (which were unknown when the dinosaur was named). The genus is not to be confused with the stegosaur ''Kentrosaurus'', the name of which is derived from the same Greek word. Later, vast bonebeds of ''Centrosaurus'' were found in Dinosaur Provincial Park, also in Alberta. Some of these beds extend for hundreds of meters and contain thousands of individuals of all ages and all levels of complet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasutoceratops
''Nasutoceratops'' is an extinct genus of ceratopsian dinosaur. It is a basal centrosaurine which lived during the Late Cretaceous Period (late Campanian, about 76.0-75.5 Ma). Fossils have been found in southern Utah, United States. ''Nasutoceratops'' was a large, ground-dwelling, quadrupedal herbivore with a short snout and unique rounded horns above its eyes that have been likened to those of modern cattle. Extending almost to the tip of its snout, these horns are the longest of all the members of the centrosaurine subfamily. The presence of pneumatic elements in the nasal bones of ''Nasutoceratops'' are a unique trait and are unknown in any other ceratopsid. Discovery and naming ''Nasutoceratops'' is known from the holotype UMNH VP 16800, a partially associated nearly complete skull, a coronoid process, a syncervical, three partial anterior dorsal vertebrae, a shoulder girdle, an associated left forelimb, parts of the right forelimb and skin impressions. Two spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasutoceratops Titusi
''Nasutoceratops'' is an extinct genus of ceratopsian dinosaur. It is a basal Centrosaurinae, centrosaurine which lived during the Late Cretaceous period (geology), Period (late Campanian, about 76.0-75.5 Mya (unit), Ma). Fossils have been found in southern Utah, United States. ''Nasutoceratops'' was a large, ground-dwelling, quadrupedal herbivore with a short snout and unique rounded horns above its eyes that have been likened to those of modern cattle. Extending almost to the tip of its snout, these horns are the longest of all the members of the centrosaurine Family (biology), subfamily. The presence of pneumatic elements in the nasal bones of ''Nasutoceratops'' are a unique trait and are unknown in any other ceratopsid. Discovery and naming ''Nasutoceratops'' is known from the holotype Utah Museum of Natural History, UMNH VP 16800, a partially associated nearly complete skull, a coronoid process, a syncervical, three partial anterior dorsal vertebrae, a shoulder g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachyceratops
''Brachyceratops'' ('short horned face') is a dubious genus of ceratopsian dinosaur known only from partial juvenile specimens dating to the late Cretaceous Period of Montana, United States. ''Brachyceratops'' has historically been known from juvenile remains, with one specimen having since been re-classified as ''Rubeosaurus ovatus''.Andrew T. McDonald & John R. Horner, (2010). "New Material of "Styracosaurus" ovatus from the Two Medicine Formation of Montana", In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, and David A. Eberth (eds), ''New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium'', Indiana University Press, 656 pp. History of discovery ''Brachyceratops montanensis'', the type species, was first discovered in the Two Medicine Formation (Campanian, about 74 million years old) on a Blackfoot Indian Reservation in Teton County in north-central Montana."Brachyceratops." In: Dodson, Peter & Britt, Brooks & Carpenter, Kenneth & Forster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diabloceratops
''Diabloceratops'' is an extinct genus of centrosaurine ceratopsian dinosaur that lived approximately 81.4-81 million years ago during the latter part of the Cretaceous Period in what is now Utah, in the United States. ''Diabloceratops'' was a medium-sized, moderately built, ground-dwelling, quadrupedal herbivore, that could grow up to an estimated in length and in body mass. At the time of its discovery, it was the oldest-known ceratopsid, and first centrosaurine known from latitudes south of the U.S. state of Montana. The generic name ''Diabloceratops'' means "devil-horned face," coming from ''Diablo'', Spanish for "devil," and ''ceratops'', Latinized Greek for "horned face." The specific name honors Jeffrey Eaton, a paleontologist at Weber State University and long time friend of the lead author Jim Kirkland. Eaton had a big role in establishing the Grand Staircase-Escalante National Monument where the specimen was found. The type species, ''Diabloceratops eatoni'', was n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrosaurus Apertus
''Centrosaurus'' ( ; ) is a genus of herbivorous ceratopsian dinosaur from the Late Cretaceous of Canada. Their remains have been found in the Dinosaur Park Formation, dating from 76.5 to 75.5 million years ago. Discovery and naming The first ''Centrosaurus'' remains were discovered and named by paleontologist Lawrence Lambe in strata along the Red Deer River in Alberta, Canada. The name ''Centrosaurus'' means "pointed lizard" (from Greek ', , "point or prickle" and ', , "lizard"), and refers to the series of small hornlets placed along the margin of their frills, not to the nasal horns (which were unknown when the dinosaur was named). The genus is not to be confused with the stegosaur ''Kentrosaurus'', the name of which is derived from the same Greek word. Later, vast bonebeds of ''Centrosaurus'' were found in Dinosaur Provincial Park, also in Alberta. Some of these beds extend for hundreds of meters and contain thousands of individuals of all ages and all levels of completi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
