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Cornulites

1、[古生]角管虫类

定义中文名称：角管虫类英文名称：cornulites 定义：一类分类位置不清的骨化管状化石，分布于奥陶至石炭纪，一般认为与多毛类有关。通常具环脊，向一端渐细，呈单体或群体固着在无脊椎动物外骨骼表面。应用学科：

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