Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
ornithomimosaur .
Etymologies
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Examples
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Apparently facultatively bipedal, with a toothless bird-like skull sporting large orbits, dinosaur-like cervical vertebrae possessing true pneumatic foramina, and reduced gracile forelimbs and a theropod-like pelvis, Effigia is strikingly like ornithomimosaurs (ostrich dinosaurs) in several details, mostly those concerning the skull and cervical vertebrae.
Archive 2006-01-01 Darren Naish 2006
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While many of these ornithomimosaurs have been found before, analysis of the bones of the new species, dubbed
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Beishanlong was equipped with hand claws up to six inches in length and relatively powerful forelimbs compared to most other ornithomimosaurs.
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Interestingly, horned dinosaurs and sickle-clawed dinosaurs tend to dominate red rocks deposited under dry conditions across almost all Cretaceous localities in the Gobi Desert, whereas tyrannosaurs, ornithomimosaurs, and duck-billed dinosaurs tend to occur in rocks deposited in wetter environments.
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With an estimated body mass of almost 1400 lbs. (626 kg), Beishanlong is one of the largest ornithomimosaurs yet described, rivaling the Late Cretaceous ornithomimosaur Gallimimus in size.
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Horned dinosaurs and sickle-clawed dinosaurs tend to dominate red rocks deposited under dry conditions across almost all Cretaceous localities in the Gobi Desert, whereas tyrannosaurs, ornithomimosaurs, and
Livescience.com 2009
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