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单词 chasmataspidid
释义

chasmataspidid

English

Noun

chasmataspidid (plural chasmataspidids)

  1. (zoology) Any of the Chasmataspidida, an extinct group of chelicerate arthropods.
    • 2015 September 1, James C. Lamsdell et al., “The oldest described eurypterid: a giant Middle Ordovician (Darriwilian) megalograptid from the Winneshiek Lagerstätte of Iowa”, in BMC Evolutionary Biology, volume 15, DOI:10.1186/s12862-015-0443-9:
      The sixth prosomal appendage is modified in both xiphosurids and chasmataspidids for use in locomotion or burrowing.
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