枝笔石
反称笔石科的一属。笔石体两侧对称，两个原始枝一般正分枝5～6级，可达8～9级，笔石枝通常一级比一级长。始部笔石枝散开，逐渐变为近平行。正胞管锯齿状排列，早期种可见有副胞管。偶见中央盘。早奥陶世，世界分布。中国主要产于南方下奥陶统。劳氏笔石
Classification(s)
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Geographic semantic resource library Earth System(in Chinese) Paleontology
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| English |
|---|
| Name | Clonograptus |
| Chinese |
|---|
| Name | 枝笔石 |
| Description | 反称笔石科的一属。笔石体两侧对称，两个原始枝一般正分枝5～6级，可达8～9级，笔石枝通常一级比一级长。始部笔石枝散开，逐渐变为近平行。正胞管锯齿状排列，早期种可见有副胞管。偶见中央盘。早奥陶世，世界分布。中国主要产于南方下奥陶统。劳氏笔石 |
{{htmlJSON.HowtoCite}}
NNU_Group (2011). 枝笔石, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/bf91c60a-adb5-46cd-8fe1-f2c0148cc1fe
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