海桩

海桩（Stylophora）是一类已灭绝的棘皮动物，化石发现于中寒武纪到晚泥盆纪，是海扁果亚门中人们了解最多的一纲。海桩有形状不规则的萼（Calyx），一些种类的萼上有椭球行鳃裂状靴孔，而有些种类的萼上则为栅状的片孔。

单词	Stylophora
释义	Stylophora 中文百科海桩海桩（Stylophora）是一类已灭绝的棘皮动物，化石发现于中寒武纪到晚泥盆纪，是海扁果亚门中人们了解最多的一纲。海桩有形状不规则的萼（Calyx），一些种类的萼上有椭球行鳃裂状靴孔，而有些种类的萼上则为栅状的片孔。英语百科 Stylophora 海桩 The stylophorans are an extinct, possibly polyphyletic group allied to the Paleozoic Era echinoderms, comprising the prehistoric cornutes and mitrates. It is synonymous with the subphylum Calcichordata.
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Stylophora