Where in the world was the Acrocanthosaurus discovered?
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J. Willis Stovall John Willis Stovall (1891– 24 July 1953) was a paleontologist at the University of Oklahoma. Along with his student Wann Langston, Jr., he named the theropod dinosaur "Acrocanthosaurus" in 1950. Most of his research centered on the Cimarron Valley region of extreme northwestern Oklahoma.
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University of Oklahoma The University of Oklahoma (OU) is a coeducational public research university in Norman, Oklahoma. Founded in 1890, it had existed in Oklahoma Territory near Indian Territory for 17 years before the two became the state of Oklahoma. In Fall 2016 the university had 31,250 students enrolled, most at its main campus in Norman. Employing nearly 3,000 faculty members, the school offers 152 baccalaureate programs, 160 master's programs, 75 doctorate programs, and 20 majors at the first professional level. David Lyle Boren, a former U.S. Senator and Oklahoma Governor, has served as the university's president since 1994.
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Petrobrasaurus Petrobrasaurus is a genus of herbivorous sauropod dinosaur. It is a titanosaur which lived during the upper Cretaceous period (Santonian age) in what is now Rincón de los Sauces, Patagonia, Argentina. It is known from the holotype MAU-Pv-PH-449 — a partial disarticulated skeleton recovered from the Plottier Formation (Neuquén Basin), Argentina. This genus was named by Leonardo S. Filippi, José Ignacio Canudo, Leonardo J. Salgado, Alberto C. Garrido, Rodolfo A. Garcia, Ignacio A. Cerda and Alejandro Otero in 2011, and the type species is "Petrobrasaurus puestohernandezi". The generic name is derived from "Petrobras" (oil company) and "saurus", "lizard". The specific name refers to the Puesto Hernández oil field, where the fossil remains were found.
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Nqwebasaurus Nqwebasaurus (] with an initial postalveolar nasal click; anglicized as ) is the name given to a genus of dinosaur sometime between the Tithonian to Valanginian (Late Jurassic to Early Cretaceous). It was the basalmost ornithomimosaur. Its fossils were found in South Africa in the Kirkwood Formation, which is called Nqweba in the native language of the Xhosa. It was nicknamed "Kirky" after this formation before receiving its scientific name. "Nqwebasaurus" is the earliest known Coelurosauria specie from Gondwana, pre-dating other known North African taxa by 50 million years. It is also the first coelurosaur to be discovered and named from Africa.
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Bone Cabin Quarry Bone Cabin Quarry was a dinosaur quarry that laid approximately fifty-five miles northwest of Laramie, Wyoming near historic Como Bluff. During the summer of 1897 Walter W. Granger, a paleontologist from the American Museum of Natural History, came upon a hillside littered with Jurassic period dinosaur bone fragments. Nearby was a sheepherder's cabin built entirely out of fossil bones, hence the name "Bone Cabin Quarry." After Granger's discovery in late August 1897, the quarry was kept secret until the summer of 1898, when the manpower could be amassed to undertake a full-scale excavation. Bone Cabin Quarry was excavated from 1898 until 1905, when the productivity of specimens thinned. Some of the dinosaurs found at the Bone Cabin Quarry include "Stegosaurus", "Allosaurus" and "Apatosaurus". "Gargoyleosaurus" is also known from the Bone Cabin Quarry West locality.
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Parasaurolophus Parasaurolophus ( or ; meaning "near crested lizard" in reference to "Saurolophus") is a genus of ornithopod dinosaur that lived in what is now North America during the Late Cretaceous Period, about 76.5–74.5 million years ago. It was a herbivore that walked both as a biped and a quadruped. Three species are universally recognized: "P. walkeri" (the type species), "P. tubicen", and the short-crested "P. cyrtocristatus". Additionally, a fourth species, "P. jiayensis", has been proposed, although it is more commonly place in the separate genus "Charonosaurus". Remains are known from Alberta (Canada), New Mexico and Utah (United States), and possibly Heilongjiang, (China). The genus was first described in 1922 by William Parks from a skull and partial skeleton found in Alberta.
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Aachenosaurus Aachenosaurus is a dubious genus of prehistoric plant. It was named based solely on fossilized fragments of material that were originally thought to be jaw fragments from a duck-billed dinosaur (a hadrosaur). However, the fossils turned out to be petrified wood, to the great embarrassment of the discoverer. The fossil's name means "Aachen lizard", named for the Aachenian deposits of Moresnet (which was a neutral territory between Belgium and Germany), where the fossils were found.
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Albertosaurus Albertosaurus ( ; meaning "Alberta lizard") is a genus of tyrannosaurid theropod dinosaurs that lived in western North America during the Late Cretaceous Period, about 70 million years ago. The type species, "A. sarcophagus", was apparently restricted in range to the modern-day Canadian province of Alberta, after which the genus is named. Scientists disagree on the content of the genus, with some recognizing "Gorgosaurus libratus" as a second species.
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Clevosaurus Clevosaurus (CLEE-vo-SORE-us) (Gloucester lizard) is an extinct genus of sphenodontian reptile from the Triassic and the Jurassic periods of Nova Scotia, Great Britain, ("C. bairdi") and Yunnan ("C. mcgilli"). "Clevosaurus" was extremely similar to the modern tuatara in almost every way; the two genera differ in only certain features of the teeth and skull anatomies, as well as size. "Clevosaurus" was smaller than the modern tuatara. "Clevosaurus" possibly ate plants as well as insects, as suggested by the form of the teeth. Fossils of "Clevosaurus", as well as other sphenodontians, early mammals and dinosaurs have been found in ancient cave systems of Great Britain. "Clevosaurus" is now believed to have had Pangaean distribution.
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Lufengosaurus Lufengosaurus (, meaning "Lufeng Lizard") is a genus of massospondylid dinosaur which lived during the Early Jurassic period in what is now southwestern China. Paleontologists reported in the journal Nature Communications the discovery of a tiny amount of preserved collagen in the rib of a Lufengosarus.
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Wyoming Dinosaur Center The Wyoming Dinosaur Center is located in Thermopolis, Wyoming and is one of the few dinosaur museums in the world to have excavation sites within driving distance. The museum acquired the Thermopolis Specimen of "Archaeopteryx", which was in private hands for decades before an anonymous donor gave it to the museum; it is the only fossil of this genus for viewing in North America.
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Szechuanosaurus Szechuanosaurus ("Szechuan lizard") is a extinct genus of carnivorous theropod dinosaur from the Late Jurassic. Fossils referred to the genus have been found in Asia in the Oxfordian (Peng "et al"., 2005). Its type species is largely based on several undiagnostic teeth from the Shangshaximiao Formation.
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Homoeosaurus Homeosaurus is an extinct genus of sphenodont reptile. It was found in limestone in Bavaria, Germany, as well as in France and the United Kingdom. It was related to the modern tuatara, though it was a considerably more gracile. There were several species varying greatly in size and morphology.
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Flaming Cliffs The Flaming Cliffs site, also known as Bayanzag, sometimes Bain-Dzak, (Mongolian: Баянзаг "rich in saxaul"), with the alternative Mongolian name of Mongolian: Улаан Эрэг ("red cliffs"), is a region of the Gobi Desert in the Ömnögovi Province of Mongolia, in which important fossil finds have been made. It was given this name by American paleontologist Roy Chapman Andrews, who visited in the 1920s. The area is most famous for yielding the first discovery of dinosaur eggs. Other finds in the area include specimens of "Velociraptor" and eutherian mammals. It is illegal here to remove fossils without appropriate permits.
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Leiosaurus Leiosaurus is a genus of lizards endemic to South America.
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Herrerasauridae Herrerasaurids are among the oldest known dinosaurs, appearing in the fossil record 231.4 million years ago (Late Triassic). These dinosaurs became extinct by the end of the Triassic period. Herrerasaurids were small-sized (not more than 4 m long) carnivorous basal saurischians. The best known representatives of this group are from South America (Brazil, Argentina), where they were first discovered in the 1960s. A nearly complete skeleton of "Herrerasaurus ischigulastensis" was discovered in the Ischigualasto Formation in San Juan, Argentina, in 1988. Less complete herrerasaurids have been found in North America, and they may have inhabited other continents as well.
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Paranthodon Paranthodon ( ) is a genus of extinct stegosaurian dinosaur that lived in South Africa during the Early Cretaceous, between 145.5 and 136.4 million years ago. Discovered in 1845, it was one of the first stegosaurians found. Its only remains, a partial skull and isolated teeth, were found in the Kirkwood Formation. British paleontologist Richard Owen initially identified the fragments as those of the pareiasaur "Anthodon". After remaining untouched for years in the British Museum of Natural History, the partial skull was identified by South African paleontologist Robert Broom as belonging to a different genus; he named the specimen "Palaeoscincus africanus". Several years later, Hungarian paleontologist Franz Nopcsa, unaware of Broom's new name, similarly concluded that it represented a new taxon, and named it "Paranthodon owenii". Since Nopcsa's species name was assigned after Broom's, and Broom did not assign a new genus, both names are now synonyms of the current binomial, "Paranthodon africanus". The genus name combines the Ancient Greek "para" (near) with the genus name "Anthodon", to represent the initial referral of the remains.
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Stegosauria Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere, predominantly in what is now North America, Europe and China, though one species ("Kentrosaurus aethiopicus") is known to have lived in Africa. Their geographical origins are unclear; the earliest unequivocal stegosaurian, "Huayangosaurus taibaii", lived in China.
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Giganotosaurus Giganotosaurus ( ) is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 97 million years ago. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993, and is almost 70% complete. The animal was named G. carolinii in 1995; the genus name translates as "giant southern lizard" and the specific name honours the discoverer, Rubén D. Carolini. A dentary bone, a tooth and some tracks, discovered before the holotype, were later assigned to this animal. The genus attracted much interest and became part of a scientific debate about the maximum sizes of theropod dinosaurs.
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Probelesodon Probelesodon is an extinct genus of chiniquodontid cynodont. Fossils have been found from Argentina and Brazil of Triassic age. Specimens were first discovered from the Chañares Formation in La Rioja Provence, Argentina that date back to the Anisian stage of the early Middle Triassic. A new species, "P. sanjuanensis", was named in 1996 on the basis of a skull found from the Ischigualasto Formation. This extends the temporal range of "Probelesodon" into the Carnian stage of the Late Triassic. The occurrence of the genus in these strata suggests that it also existed during the deposition of the Los Rastros Formation, which also outcrops in the same area as the localities where fossils have been found, although specimens have yet to be found from this formation. The presence of the genus in the Ischigualasto Formation is restricted to the earlier strata, becoming completely extinct soon after along with the last of the carnivorous cynodonts in the area. This has been taken as evidence for the gradual replacement of therapsid fauna with the later mainly archosaur-dominated faunas of the Late Triassic. Evidence from the
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Alocodon Alocodon (a-LOK-o-don; Greek "alox" and "odon" meaning 'furrow' and 'tooth') is a genus of ornithischian dinosaur from the Late Jurassic of what is now Portugal. It was described in 1975 by Richard Anthony Thulborn. It had small ornithopod-like teeth with vertical grooves. This animal is only known from these teeth, and is usually considered a "nomen dubium".
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Abrosaurus Abrosaurus ( ; 'delicate lizard' from the Greek αβρος meaning 'delicate' or 'dainty' and σαυρος meaning 'lizard') is a genus of macronarian sauropod dinosaur from the Middle Jurassic Period of what is now Asia, one of many dinosaurs found at the Dashanpu Quarry in the Sichuan Province of China. Like most sauropods, "Abrosaurus" was a quadrupedal herbivore but it was rather small for a sauropod, not much more than 30 feet (9 m) long. Its head was boxy and topped with a tall bony arch containing the nostrils.