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词汇 ornithomimosaur
释义

Definition of ornithomimosaur in English:

ornithomimosaur

noun ˌɔːnɪθə(ʊ)ˈmʌɪməsɔːˌôrnəTHōˈmīməsôr
  • technical term for ostrich dinosaur
    Example sentencesExamples
    • The only remaining controversy is whether therezinosauroids are closer to ornithomimosaurs or to oviraptorosaurs.
    • Holtz ultimately concludes that ornithomimosaurs and tyrannosaurs probably form a monophyletic group, although his calculations do not yield a clean separation.
    • Ornithomimosaurs were a group of toothless meat-eating theropod dinosaurs that lived in the Cretaceous period.
    • Previous work with stable nitrogen isotope analysis did not find a significant difference in values between North American ornithomimosaurs and clearly carnivorous theropods such as tyrannosaurids and dromaeosaurids.
    • Dodson suggested, because of their rarity, that the small theropods ‘habitually inhabited other environments in other areas’, unlike Albertosaurus and the ornithomimosaurs.

Origin

1980s: from modern Latin Ornithomimosauria, from Greek ornis, ornith- 'bird' + mimos 'mime' + sauros 'lizard'.

Definition of ornithomimosaur in US English:

ornithomimosaur

nounˌôrnəTHōˈmīməsôr
  • technical term for ostrich dinosaur
    Example sentencesExamples
    • Ornithomimosaurs were a group of toothless meat-eating theropod dinosaurs that lived in the Cretaceous period.
    • Dodson suggested, because of their rarity, that the small theropods ‘habitually inhabited other environments in other areas’, unlike Albertosaurus and the ornithomimosaurs.
    • The only remaining controversy is whether therezinosauroids are closer to ornithomimosaurs or to oviraptorosaurs.
    • Holtz ultimately concludes that ornithomimosaurs and tyrannosaurs probably form a monophyletic group, although his calculations do not yield a clean separation.
    • Previous work with stable nitrogen isotope analysis did not find a significant difference in values between North American ornithomimosaurs and clearly carnivorous theropods such as tyrannosaurids and dromaeosaurids.

Origin

1980s: from modern Latin Ornithomimosauria, from Greek ornis, ornith- ‘bird’ + mimos ‘mime’ + sauros ‘lizard’.

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