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Ornithomimidae
Ornithomimidae (meaning "bird-mimics") is a family of theropod dinosaurs which bore a superficial resemblance to modern ostriches. Ornithomimids were fast, omnivorous or herbivorous dinosaurs known mainly from the Late Cretaceous Period of Laurasia (now Asia and North America), though they have also been reported from the Lower Cretaceous Wonthaggi Formation of Australia. Description The skulls of ornithomimids were small, with large eyes, above relatively long and slender necks. All had toothless beaks. The fore limbs ('arms') were long and slender and bore powerful claws. The hind limbs were long and powerful, with a long foot and short, strong toes terminating in hooflike claws. Ornithomimids were probably among the fastest of all dinosaurs.Holtz, Thomas R. Jr. (2012) ''Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,'Winter 2011 Appendix./ref> Like many other coelurosaurs, the ornithomimid hide was feathered rather than scaly. Biology C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gallimimus
''Gallimimus'' ( ) is a genus of theropod dinosaur that lived in what is now Mongolia during the Late Cretaceous period, about seventy million years ago (mya). Several fossils in various stages of growth were discovered by Polish-Mongolian expeditions in the Gobi Desert of Mongolia during the 1960s; a large skeleton discovered in this region was made the holotype specimen of the new genus and species ''Gallimimus bullatus'' in 1972. The generic name means "chicken mimic", referring to the similarities between its neck vertebrae and those of the Galliformes. The specific name is derived from '' bulla'', a golden capsule worn by Roman youth, in reference to a bulbous structure at the base of the skull of ''Gallimimus''. At the time it was named, the fossils of ''Gallimimus'' represented the most complete and best preserved ornithomimid ("ostrich dinosaur") material yet discovered, and the genus remains one of the best known members of the group. ''Gallimimus'' is the largest know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Struthiomimus
''Struthiomimus'' (meaning "ostrich mimic", from the Ancient Greek, Greek στρούθειος/''stroutheios'' meaning "of the ostrich" and μῖμος/''mimos'' meaning "mimic" or "imitator") is a genus of Ornithomimidae, ornithomimid dinosaurs from the late Cretaceous of North America. Ornithomimids were long-legged, bipedal, ostrich-like dinosaurs with toothless beaks. The type species, ''Struthiomimus altus'', is one of the more common small dinosaurs found in Dinosaur Provincial Park; its abundance suggests that these animals were herbivores or omnivores rather than pure carnivores. History of discovery In 1901, Lawrence Lambe found some incomplete remains, holotype CMN 930, and named them ''Ornithomimus altus'', placing them in the same genus as material earlier described by Othniel Charles Marsh in 1890. The specific name (zoology), specific name ''altus'' is from Latin, meaning "lofty" or "noble". However, in 1914, a nearly complete skeleton (AMNH 5339) was discovered by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeornithomimus
''Archaeornithomimus'' (meaning "ancient bird mimic") is a genus of ornithomimosaurian theropod dinosaur that lived in Asia during the Late Cretaceous period, around 96 million years ago in the Iren Dabasu Formation. Discovery and naming In 1923, during the American Museum of Natural History expedition by Roy Chapman Andrews to Inner Mongolia, Peter Kaisen discovered numerous theropod remains in three quarries. They consist of the largely disarticulated remains of several individuals and material of the skull and the lower jaws is lacking. These were named and shortly described by Charles Whitney Gilmore in 1933 as a new species of ''Ornithomimus'': ''Ornithomimus asiaticus''. The specific name refers to the Asian provenance. The species was placed in the new genus ''Archaeornithomimus'' by Dale Russell in 1972, making ''Archaeornithomimus asiaticus'' the type species of the genus. The generic name combines that of ''Ornithomimus'' with a Greek ἀρχαῖος (''archaios''), " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anserimimus
''Anserimimus'' ( ; "goose mimic") is a genus of ornithomimid theropod dinosaur, from the Late Cretaceous Period of what is now Mongolia. It was a lanky, fast-running animal, possibly an omnivore. From what fossils are known, it probably closely resembled other ornithomimids, except for its more powerful forelimbs. Discovery ''Anserimimus'' was found in the Mongolian aimag, or province, of Bayankhongor during a joint Soviet-Mongolian expedition to the Gobi Desert, in the late 1970s. Mongolian paleontologist Rinchen Barsbold named ''Anserimimus'' in 1988, combining the Latin ''anser'' meaning 'goose' with the Greek ''mimos'' meaning 'mimic'. ''Anser'' is the generic name of several species of geese. Although ''Anserimimus'' does not specifically resemble a goose, ornithomimosaurs have traditionally been named after different types of birds, such as ''Struthiomimus'' ('ostrich mimic'), ''Gallimimus'' ('rooster mimic'), and ''Pelecanimimus'' ('pelican mimic'). The one named species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rativates
''Rativates'' is a genus of ornithomimid theropod dinosaur from the Dinosaur Park Formation of Alberta. The type species is ''Rativates evadens''. Discovery and naming In 1934, Levi Sternberg discovered the skeleton of a small ornithomimid at Quarry N° 028 near the Red Deer River in the area of the present Dinosaur Provincial Park in Canada. In 1950, he considered it a specimen of ''Struthiomimus''. In 1972, Dale Alan Russell formally referred this specimen to ''Struthiomimus altus''; he partly based his reconstruction of ''S. altus'' on the skull of the specimen. The remainder of the skeleton was not described until 2016. In 2016, the type species ''Rativates evadens'' was named and described by Bradley McFeeters, Michael J. Ryan, Claudia Schröder-Adams and Thomas M. Cullen. The generic name is derived from the Latin ''ratis'', "raft", in reference to the bird group ratites, and ''vates'', "seer", as the ornithomimids seemingly foretold the future existence of the ratites th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qiupalong
''Qiupalong'' is a genus of extinct ornithomimid theropods from the Late Cretaceous of what is now China and Canada. The type specimen, holotype HGM 41HIII-0106, preserves partial hips and hindlimbs, and was named and described in 2011. The team describing it, Xu ''et al.'', found it to represent a new taxon, which they gave the binomial ''Qiupalong henanensis''. The genus name comes from the Qiupa Formation, where the specimen comes from, and the Chinese word ''long'', meaning "dragon". The specific epithet is derived from the taxon's occurrence in the Henan Province. ''Qiupalong'' is from the late Late Cretaceous, based on the age of the Qiupa Formation. ''Qiupalong'' is the first definitive Asian ornithomimid from outside of the Gobi Desert and is the southernmost occurrence of Late Cretaceous Ornithomimidae from eastern Asia. Additional specimens, which include vertebrae, forelimbs, hips, hindlimbs, were later described in 2017 from the Belly River Group of Alberta, Canada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tototlmimus
''Tototlmimus'' is an extinct genus of ornithomimid dinosaur. Its remains were found from the late Cretaceous Packard Formation, in the Sonora state, México. Discovery The only known species, the type species ''Tototlmimus packardensis'', was formally described in October 2015 by Claudia Inés Serrano-Brañas, Esperanza Torres-Rodríguez, Paola Carolina Reyes-Luna, Ixchel González-Ramírez and Carlos González-León; because the online publication was not registered in ZooBank, the name was only validly published when the paper was printed in March 2016. The genus name is derived from the Nahuatl word ''tototl'', "bird", and the Latin ''mimus'', "mimic" (from Greek μῖμος). The specific name refers to its origin from the Packard Formation. The fossil specimen, holotype ERNO 8553, was found in the northeastern Mexican state of Sonora, in the Cabullona Group, in a bed of the Packard Shale which may date from the late Campanian, 72 million years ago. It consists of a partia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithomimus Velox
''Ornithomimus'' (; "bird mimic") is a genus of ornithomimid dinosaurs from the Late Cretaceous Period of what is now North America. ''Ornithomimus'' was a swift bipedal theropod which fossil evidence indicates was covered in feathers, equipped with a small toothless beak that may indicate an omnivorous diet. It is usually classified into two species: the type species, ''Ornithomimus velox'', and a referred species, ''Ornithomimus edmontonicus''. ''O. velox'' was named in 1890 by Othniel Charles Marsh on the basis of a foot and partial hand from the late Maastrichtian-age Denver Formation of Colorado, United States. Another seventeen species have been named since, though most of them have subsequently been assigned to new genera or shown to be not directly related to ''Ornithomimus velox''. The best material of species still considered part of the genus has been found in Alberta, Canada, representing the species ''O. edmontonicus'', known from several skeletons from the early Maa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithomimus
''Ornithomimus'' (; "bird mimic") is a genus of ornithomimid dinosaurs from the Late Cretaceous Period of what is now North America. ''Ornithomimus'' was a swift bipedal theropod which fossil evidence indicates was covered in feathers, equipped with a small toothless beak that may indicate an omnivorous diet. It is usually classified into two species: the type species, ''Ornithomimus velox'', and a referred species, ''Ornithomimus edmontonicus''. ''O. velox'' was named in 1890 by Othniel Charles Marsh on the basis of a foot and partial hand from the late Maastrichtian-age Denver Formation of Colorado, United States. Another seventeen species have been named since, though most of them have subsequently been assigned to new genera or shown to be not directly related to ''Ornithomimus velox''. The best material of species still considered part of the genus has been found in Alberta, Canada, representing the species ''O. edmontonicus'', known from several skeletons from the early Maast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinornithomimus
''Sinornithomimus'' is a genus of ornithomimid that lived in Asia during the Late Cretaceous period. The first remains were found in 1997, in the Late Cretaceous strata of the Ulansuhai Formation located at Alshanzuo Banner, Inner Mongolia Autonomous Region, Northern China. Discovery and naming The first fossil remains of ''Sinornithomimus'' were uncovered by Dong Zhiming in the Ulansuhai Formation as part of the Mongol Highland International Dinosaur Project in 1997. They contained at least fourteen skeletons found in close association, nine of which are nearly complete and relatively uncrushed. The find consisted of three sub-adult to adult specimens and eleven juveniles. The unweathered state of the bones, preserved in siltstone interspersed with layers of clay and the absence of evidence for post-mortem movement, argue for a catastrophic event that killed all the individuals present in the find simultaneously and instantaneously. The type species ''Sinornithomimus do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya; their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds. Dinosaurs are varied from taxonomic, morphological and ecological standpoints. Birds, at over 10,700 living species, are among ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theropod
Theropoda (; ), whose members are known as theropods, is a dinosaur clade that is characterized by hollow bones and three toes and claws on each limb. Theropods are generally classed as a group of saurischian dinosaurs. They were ancestrally carnivorous, although a number of theropod groups evolved to become herbivores and omnivores. Theropods first appeared during the Carnian age of the late Triassic period 231.4 million years ago ( Ma) and included all the large terrestrial carnivores from the Early Jurassic until at least the close of the Cretaceous, about 66 Ma. In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are today represented by about 10,500 living species. Biology Diet and teeth Theropods exhibit a wide range of diets, from insectivores to herbivores and carnivores. Strict carnivory has always been considered the ancestral diet for theropods as a group, and a wider variety of diets was historically considered a characteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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