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Cloud soth
Contents
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No. 1
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Containing Phrases
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No. 1
古无脊椎动物。腕足纲的一属。生存在晚泥盆世。
拉丁名:yunnanella grabau
形态特征:
壳三角形。背双凸式。腹中槽,背中隆仅显露于壳体前端;中槽浅阔,作显著的舌状延伸。壳面具圆形壳线,分枝或插入式增加。壳体前部具棱角状壳褶,由若干壳线合并或有单独的壳线扩粗而成。齿板发育,相距甚远;背壳内中隔板短小。
Containing Phrases
Cloud soth genus
Cloud soth fountain technology Corporation Ltd.