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棘皮动物 - 维基百科 跳转到内容

棘皮动物

出自维基百科,自由个百科全书

棘皮动物门(学名:Echinodermata)是动物界个一门。箇个门从寒武纪出现,总共有20000多种类,现生种约5000余种。除现生5纲外,另有15纲之多,侪是海生动物,无陆生或淡水种类。









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