“petalichthyids”的概念、定义、翻译、参考文献-科学参考

单词	petalichthyids
释义	petalichthyids Encyclopedia 理学有颌类释 petalichthyids瓣甲鱼类盾皮鱼纲瓣甲鱼目动物的统称，是一种背腹扁平的盾皮鱼类，可能与节甲鱼类具有较近的亲缘关系。
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