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单词 eurypterid
释义

Definition of eurypterid in English:

eurypterid

noun ˌjʊ(ə)ˈrɪptərɪdyəˈriptərid
  • A giant fossil marine arthropod of a group occurring in the Palaeozoic era. They are related to horseshoe crabs, and resemble large scorpions with a terminal pair of paddle-shaped swimming appendages.

    Subclass Eurypterida, class Merostomata, subphylum Chelicerata

    Example sentencesExamples
    • The most remarkable example is the three-dimensionally preserved soft tissues of the giant conodont animal Promissum pulchrum, eurypterids and other arthropods from the Upper Ordovician Soom Shale of South Africa.
    • Similarly, with the dramatic decline of marine eurypterids (large arthropods) about 410 million years ago, the first large marine predators were lost.
    • Miller said he also hopes to study the relationship, if any, between Doliodus problematicus and giant, ancient sea scorpions, a type of eurypterid related to horseshoe crabs.
    • Important fossil groups are the trilobites, a large group of Palaeozoic marine arthropods of uncertain affinity, and the eurypterids, Palaeozoic marine forms related to the arachnids.
    • Dr Selden said the Megarachne, a giant eurypterid or sea scorpion, is closely related to a creature called Woodwardopterus, from the Carboniferous Period, found in Scotland and with relatives in South Africa.

Origin

Late 19th century: from modern Latin Eurypterus (genus name), from eury- + Greek pteron 'wing' + -id2.

 
 

Definition of eurypterid in US English:

eurypterid

nounyəˈriptərid
  • An extinct marine arthropod of a group occurring in the Paleozoic era. They are related to horseshoe crabs and resemble large scorpions with a terminal pair of paddle-shaped swimming appendages.

    Subclass Eurypterida, class Merostomata, subphylum Chelicerata

    Example sentencesExamples
    • Dr Selden said the Megarachne, a giant eurypterid or sea scorpion, is closely related to a creature called Woodwardopterus, from the Carboniferous Period, found in Scotland and with relatives in South Africa.
    • Similarly, with the dramatic decline of marine eurypterids (large arthropods) about 410 million years ago, the first large marine predators were lost.
    • The most remarkable example is the three-dimensionally preserved soft tissues of the giant conodont animal Promissum pulchrum, eurypterids and other arthropods from the Upper Ordovician Soom Shale of South Africa.
    • Miller said he also hopes to study the relationship, if any, between Doliodus problematicus and giant, ancient sea scorpions, a type of eurypterid related to horseshoe crabs.
    • Important fossil groups are the trilobites, a large group of Palaeozoic marine arthropods of uncertain affinity, and the eurypterids, Palaeozoic marine forms related to the arachnids.

Origin

Late 19th century: from modern Latin Eurypterus (genus name), from eury- + Greek pteron ‘wing’ + -id.

 
 
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更新时间:2025/1/27 14:03:29