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Oviraptoridae
Oviraptoridae is a group of bird-like, herbivorous and omnivorous maniraptoran dinosaurs. Oviraptorids are characterized by their toothless, parrot-like beaks and, in some cases, elaborate crests. They were generally small, measuring between one and two metres long in most cases, though some possible oviraptorids were enormous. Oviraptorids are currently known only from the Late Cretaceous of Asia, with the most well-known species and complete specimens found only in the Gobi Desert of Mongolia and northwestern China. Description The most characteristic feature of this group is the skull structure. Oviraptorids had short snouts and very deep mandibles. Some taxa (such as ''Citipati'', '' Corythoraptor'', ''Rinchenia'') had a midline crest on top of the skull, resembling that of a cassowary. Other distinguishing characteristics include a bony spike intruding on the mandibular fenestra, nostrils placed very high and far back on the snout, an extremely thin bony bar beneath the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oviraptor Philoceratops
''Oviraptor'' (; ) is a genus of oviraptorid dinosaur that lived in Asia during the Late Cretaceous period. The first remains were collected from the Djadokhta Formation of Mongolia in 1923 during a paleontological expedition led by Roy Chapman Andrews, and in the following year the genus and type species ''Oviraptor philoceratops'' were named by Henry Fairfield Osborn. The genus name refers to the initial thought of egg-stealing habits, and the specific name was intended to reinforce this view indicating a preference over ceratopsian eggs. Despite the fact that numerous specimens have been referred to the genus, ''Oviraptor'' is only known from a single partial skeleton regarded as the holotype, as well as a nest of about fifteen eggs and several small fragments from a juvenile. ''Oviraptor'' was a rather small feathered oviraptorid, estimated at long with a weight between . It had a wide lower jaw with a skull that likely had a crest. Both upper and lower jaws were toothless ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oviraptor
''Oviraptor'' (; ) is a genus of oviraptorid dinosaur that lived in Asia during the Late Cretaceous period. The first remains were collected from the Djadokhta Formation of Mongolia in 1923 during a paleontological expedition led by Roy Chapman Andrews, and in the following year the genus and type species ''Oviraptor philoceratops'' were named by Henry Fairfield Osborn. The genus name refers to the initial thought of egg-stealing habits, and the specific name was intended to reinforce this view indicating a preference over ceratopsian eggs. Despite the fact that numerous specimens have been referred to the genus, ''Oviraptor'' is only known from a single partial skeleton regarded as the holotype, as well as a nest of about fifteen eggs and several small fragments from a juvenile. ''Oviraptor'' was a rather small feathered oviraptorid, estimated at long with a weight between . It had a wide lower jaw with a skull that likely had a crest. Both upper and lower jaws were toothl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nankangia
''Nankangia'' is an extinct genus of caenagnathoid oviraptorosaurian dinosaur known from the Upper Cretaceous Nanxiong Formation of Nankang County, Ganzhou City of Jiangxi Province, southeastern China. It contains a single species, ''Nankangia jiangxiensis''. ''N. jiangxiensis'' coexisted with at least four other caenagnathoids, including but not limited to '' Corythoraptor'', '' Banji long'', '' Ganzhousaurus nankangensis'' and '' Jiangxisaurus ganzhouensis''. The relatively short dentary and non-downturned mandibular symphysis of ''Nankangia'' suggest that it may have been more herbivorous than carnivorous. Its diet consisted of leaves and seeds. Discovery ''Nankangia'' was first described and named by Lü Junchang, Yi Laiping, Zhong Hui and Wei Xuefang in 2013 and the type species is ''Nankangia jiangxiensis''. The generic name honors the Chinese administrative unit Nankang County in Jiangxi Province, and the specific name honors the province where the holotype site in N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemegtomaia
''Nemegtomaia'' is a genus of oviraptorid dinosaur from what is now Mongolia that lived in the Late Cretaceous Period, about 70million years ago. The first specimen was found in 1996, and became the basis of the new genus and species ''N. barsboldi'' in 2004. The original genus name was ''Nemegtia'', but this was changed to ''Nemegtomaia'' in 2005, as the former name was preoccupied. The first part of the generic name refers to the Nemegt Basin, where the animal was found, and the second part means "good mother", in reference to the fact that oviraptorids are known to have brooded their eggs. The specific name honours the palaeontologist Rinchen Barsbold. Two more specimens were found in 2007, one of which was found on top of a nest with eggs, but the dinosaur had received its genus name before it was found associated with eggs. ''Nemegtomaia'' is estimated to have been around 2 m (7 ft) in length, and to have weighed 40 kg (85 lb). As an oviraptorosaur, it w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huanansaurus
''Huanansaurus'' is an extinct genus of oviraptorid dinosaur that lived approximately 72 million years ago, between the Campanian and Maastrichtian, during the latter part of the Cretaceous period in what is now China, in the Nanxiong Formation. Discovery and designation The skeleton of a new oviraptorid ''Huanansaurus ganzhouensis'' was uncovered during the construction of the Ganzhou railway station in Jiangxi province, China. In 2015, Lü Junchang, Pu Hanyong, Yoshitsugu Kobayashi, Xu Li, Chang Huali, Shang Yuhua, Liu Di, Lee Yuong-Nam, Martin Kundrát and Shen Caizhi named and described the type species ''Huanansaurus ganzhouensis''. The generic name is derived from Huanan, "Southern China". The specific name refers to the provenance from Ganzhou. ''Huanansaurus'' was one of eighteen dinosaur taxa from 2015 to be described in open access or free-to-read journals. The holotype, HGM41HIII-0443, was found in a layer of the Nanxiong Formation dating from the Campanian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corythoraptor
''Corythoraptor'' () is a genus of oviraptorid dinosaur from the late Maastrichtian Nanxiong Formation of South China. It contains one species, ''C. jacobsi'', known from a single well-preserved skeleton, and named after paleontologist Louis L. Jacobs. It bears a tall crest similar to that of the modern cassowary, and possibly had a similar functionality of display and resonance to detect lower-frequency sounds. Like other oviraptorids, the bones of ''Corythoraptor'' were heavily pneumatized with many air pockets. Microanalysis of the bones indicates seasonal growth spurts, and the type specimen probably died at the age of 6 or 7, meaning growth continued into at least the 8th year of development. The type specimen reached in length. Oviraptorids may have predominantly inhabited arid environments and ate xerophytic (drought-resistant) plants, nuts, and seeds. However, ''Corythoraptor'' coexisted with six other oviraptorid genera, and they may have all eaten different foods (n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khaan
''Khaan'' (; from Mongol 'lord') was an oviraptorid dinosaur that was found in the Djadochta Formation of Mongolia and lived in the Late Cretaceous Period (Campanian), 75-71 million years ago. Description ''Khaan'' did not differ much from other oviraptorids. At first, its remains were assigned to "Ingenia", but the ''Khaan'' manual structure, lacking the expansion of the upper third metacarpal, was considered to differ sufficiently from that of "Ingenia" for it to be assigned to its own genus. The oviraptorid diet is disputed, with plants and molluscs having been suggested. Like other oviraptorids, ''Khaan'' was probably at least partially a meat eater, feeding on small vertebrates like mammals, lizards and possibly other small dinosaurs. It was also probably feathered. Discovery The type species ''Khaan mckennai'' was in 2001 named by James M. Clark e.a. The genus name is derived from Mongol ''khaan'', "lord" or "ruler". The specific name honours the paleontologist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oksoko Avarsan
''Oksoko'' (''Oak-soak-oh''; from '' Öksökö'', a mythical bird of Yakut folklore) is a genus of oviraptorid dinosaur from the Late Cretaceous of Asia, that lived in what is now the Nemegt Formation in Mongolia. It includes the type species ''Oksoko avarsan''. History of discovery The first specimen of ''Oksoko'', MPC-D 100/33, was discovered in 1974 by the Soviet-Mongolian Palaeontological Expedition at the Bügiin Tsav locality in the Nemegt Formation of Mongolia. It is represented by a partial subadult postcranial skeleton. The holotype specimen is a block of an assemblage of three individuals buried in life positions that has been labelled as MPC-D 102/110. The first individual, subcatalogued as MPC-D 102/110a, is a partial skeleton of a juvenile preserving the skull, cervical vertebrae, pelvis, hindlimbs, and caudal vertebrae. Another specimen in this block is represented by MPC-D 102/110b, a large quadrate and quadratojugal. The third specimen in this assemblage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machairasaurus
''Machairasaurus'' is a genus of oviraptorid dinosaur which was found in the Bayan Mandahu Formation, China, dating to the late Cretaceous period. Discovery During the Sino-Canadian expeditions of 1988 and 1990 some skeletons of unknown oviraptorosaurians were discovered by Philip J. Currie in Inner Mongolia. Based on two of these a new genus was named and described by Nicholas R. Longrich, Currie and Dong Zhiming in 2010 with as type species ''Machairasaurus leptonychus''. The generic name is derived from Greek ('), "short scimitar". The specific name is derived from Greek ('), "slender", and ('), "claw". The species name as a whole refers to the sabre-like claws of the hand. The holotype, IVPP V15979, was found in layers of the Bayan Mandahu dating from the late Campanian. It mainly consists of a left frontlimb, including the lower end of the lower arm, two carpal bones and a complete hand. Also some fragmentary foot elements were present. The other find is the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tongtianlong
''Tongtianlong'' (meaning "Tongtianyan dragon") is a genus of oviraptorid theropod dinosaurs that lived in the late Maastrichtian epoch of the late Cretaceous period. It contains one species, ''T. limosus''. Description ''Tongtianlong'' was a sheep-sized member of the oviraptorids, a group of omnivorous, feathered, bird-like theropods. The describers of ''Tongtianlong'' recognized that it possessed a set of distinctive characteristics that differentiated it both from other oviraptorosaurs. In particular, unlike other oviraptorids, the crest of ''Tongtianlong'' was shaped like a dome, with its highest point just behind the eye socket; and the front edge of the toothless premaxilla, which would have supported its beak, was very rounded. Additionally, there is a distinct ridge on the front margin of the parietal bone, wedged between the frontal bones; the shaft of the lacrimal bone, which is located in front of the eye socket, is wide, flattened, and plate-like seen from the side ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganzhousaurus
''Ganzhousaurus'' (meaning "Ganzhou lizard") is an extinct genus of oviraptorid dinosaur known from the Late Cretaceous Nanxiong Formation of Nankang County, Ganzhou City of Jiangxi Province, southern China. It was found in a Maastrichtian deposit and contains a single species, ''Ganzhousaurus nankangensis''. It is distinguished by a combination of primitive and derived features. Phylogeny Phylogenetic analysis places ''Ganzhousaurus'' within Oviraptoridae. Within Oviraptoridae its phylogenetic position is more unstable, with one phylogenetic analysis recovering it as a member of the Oviraptorinae and another recovering it as a more derived member of the group, closely related to "ingeniines" However, it also bears some similarities to the basal caenagnathid '' Gigantoraptor''. Paleobiology ''Ganzhousaurus'' shared its habitat with at least four other oviraptorid species, ''Jiangxisaurus ganzhouensis, Nankangia jinzhouensis, Banji long,'' and an as-yet unnamed specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rinchen Barsbold
, Rinchyengiin Barsbold, born December 21, 1935 in Ulaanbaatar) is a Mongolian paleontologist and geologist. He works with the Institute of Geology, at Ulaanbaatar, Mongolia. He is an expert in vertebrate paleontology and Mesozoic stratigraphy. Barsbold has been instrumental in the discovery and recovery of one of the largest dinosaur collections in the world. His work has helped to form a more modern understanding of the later stages of dinosaur evolution in Eurasia. Barsbold has had considerable influence on dinosaur paleontology in the Communist world. His scientific work has made him a leading authority on theropods of the Gobi Desert, starting with his doctoral dissertation on these dinosaurs. As early as 1983, he noted that in different lineages of theropods, many features previously only known from birds had evolved in various combinations (Barsbold 1983). He postulated that as a result of this "ornithization", one or several lineages of theropods that happened to acquire th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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