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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 Eurypterida
 板足鱟類

From: Webster's Revised Unabridged Dictionary (1913)

 Eu·ryp·te·roi·de·a n. pl.  Paleont. An extinct order of Merostomata, of which the genus Eurypterus is the type. They are found only in Paleozoic rocks. [Written also Eurypterida.]
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From: WordNet (r) 2.0

 Eurypterida
      n : extinct aquatic arthropods of the Paleozoic [syn: order
           Eurypterida]