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agnathans
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agnathans
Encyclopedia
理学
无颌类
释
agnathans
无颌类
没有颌的鱼类,在分类上属于脊索动物门(Chordata)脊椎动物亚门(Vertebrata)无颌超纲(Agnatha),与之对应的则是脊椎动物亚门的另一大类群——有颌类,即有颌超纲(Gnathostomata)。
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更新时间:2026/6/5 10:53:39