英语词汇“helcionellacea”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	helcionellacea
释义	Helcionellacea Helcionellacea [¦hel·sē·ō·nə′las·ē·ə] (paleontology) A superfamily of extinct gastropod mollusks in the order Aspidobranchia.
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Helcionellacea