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单词 elasmosaur
释义

Definition of elasmosaur in English:

elasmosaur

nounɪˈlazmə(ʊ)sɔːəˈlazməˌsôr
  • A Cretaceous plesiosaur with a long neck shaped like that of a swan.

    板龙,薄板龙(白垩纪的蛇颈龙)

    Family Elasmosauridae, infraorder Plesiosauria: several genera, including Elasmosaurus

    Example sentencesExamples
    • The remains include the bones of dinosaurs, birds, and large marine reptiles such as mosasaurs and elasmosaurs, as well as fossilized sponges, mollusks, pine cones, and diverse fish teeth.
    • Like the rest of the Plesiosauroidea, elasmosaurs had a barrel-shaped body with four paddle-shaped flippers.
    • Elasmosaurus was the longest member of the elasmosaur family and in fact, the longest-known plesiosaur.
    • Storrs considers this species a synonym of P. guilelmiimperatoris, while Robert Bakker asserts that it is an early elasmosaur, and transfers it to the genus Microcleidus (as M. brachypterygius).
    • However, all elasmosaurs are quite similar, and extreme, in overall body morphology.

Origin

Late 19th century: from modern Latin Elasmosaurus, from Greek elasmos 'beaten metal' + sauros 'lizard'.

Definition of elasmosaur in US English:

elasmosaur

(also elasmosaurus)
nounəˈlazməˌsôr
  • A Cretaceous plesiosaur with a long neck shaped like that of a swan.

    板龙,薄板龙(白垩纪的蛇颈龙)

    Family Elasmosauridae, infraorder Plesiosauria: several genera, including Elasmosaurus

    Example sentencesExamples
    • The remains include the bones of dinosaurs, birds, and large marine reptiles such as mosasaurs and elasmosaurs, as well as fossilized sponges, mollusks, pine cones, and diverse fish teeth.
    • Elasmosaurus was the longest member of the elasmosaur family and in fact, the longest-known plesiosaur.
    • Like the rest of the Plesiosauroidea, elasmosaurs had a barrel-shaped body with four paddle-shaped flippers.
    • However, all elasmosaurs are quite similar, and extreme, in overall body morphology.
    • Storrs considers this species a synonym of P. guilelmiimperatoris, while Robert Bakker asserts that it is an early elasmosaur, and transfers it to the genus Microcleidus (as M. brachypterygius).

Origin

Late 19th century: from modern Latin Elasmosaurus, from Greek elasmos ‘beaten metal’ + sauros ‘lizard’.

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更新时间:2024/12/27 2:41:33