双笔石
正笔石目的一属。笔石体具双列胞管，横切面为卵形或近长方形。始部胞管弯曲，形成方形口穴，似栅笔石式胞管，继而胞管弯曲变缓成雕笔石式，末部胞管为直管状。中奥陶世至早志留世，亚洲、欧洲、美洲、大洋洲。中国多产于南方上奥陶统及下志留统西北也有产出。
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Contributor
contributed at 2011-10-11
Classification(s)
●
Earth System(in Chinese) Paleontology
Detailed Description
| English |
|---|
| Name | Diplograptus |
| Chinese |
|---|
| Name | 双笔石 |
| Description | 正笔石目的一属。笔石体具双列胞管，横切面为卵形或近长方形。始部胞管弯曲，形成方形口穴，似栅笔石式胞管，继而胞管弯曲变缓成雕笔石式，末部胞管为直管状。中奥陶世至早志留世，亚洲、欧洲、美洲、大洋洲。中国多产于南方上奥陶统及下志留统西北也有产出。 |
How to Cite
NNU_Group (2011). 双笔石, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/9443e1a5-ea3e-4f29-8801-07a7b3bb9443
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