| 华北板块寒武系开腔骨类（Chancelloriids）化石新材料 |
| |
| 引用本文： | 韩乔羽,李国祥,王平丽,高健,韩颖,张天禄,孙智新.华北板块寒武系开腔骨类（Chancelloriids）化石新材料[J].高校地质学报,1997,25(4):633. |
| |
| 作者姓名： | 韩乔羽 李国祥 王平丽 高健 韩颖 张天禄 孙智新 |
| |
| 摘 要： | 文章对采自华北板块山东潍坊、河北唐山和辽宁大连的寒武系开腔骨类化石的新材料进行了研究，这些化石鉴定为
Chancelloria 属。辽宁大连地区的Chancelloria 产自寒武系第二统第四阶馒头组下部的黄绿色页岩；山东潍坊地区的
Chancelloria 产自苗岭统乌溜阶馒头组上部的黄绿色页岩和鼓山阶张夏组的深灰色中厚层灰岩；河北唐山地区的Chancelloria
产于芙蓉统江山阶长山组的薄层灰岩，该层位是目前Chancelloria 属在中国产出的最高层位，也是全球的最高层位之一。这
些来自华北寒武系第二统—芙蓉统的Chancelloria 骨片与早期的骨片相比，展现出骨片形态趋于规则、基面从浑圆趋于平
整、骨片整合度提升的特点，进一步印证了之前关于此类问题的研究结论。
|
| 关 键 词： | 开腔骨类 Chancelloria 寒武系 芙蓉统 华北板块 |
New Material of Chancelloriids from Cambrian,North China |
| |
| HAN Qiaoyu,LI Guoxiang,WANGPingli,GAOJian,HAN Ying,ZHANG Tianlu,SUN Zhixin.New Material of Chancelloriids from Cambrian,North China[J].Geological Journal of China Universities,1997,25(4):633. |
| |
| Authors: | HAN Qiaoyu LI Guoxiang WANGPingli GAOJian HAN Ying ZHANG Tianlu SUN Zhixin |
| |
| Abstract: | Chancelloriids is a kind of typical Cambrian fauna with an enigmatic biological affinity. Isolated sclerites of chancelloriids
are widespread in Cambrian sedimentary rocks, but chancelloriid sclerites have been seldom reported from the Cambrian of North
China. Herein we described some isolated sclerites of chancelloriids from Cambrian rocks of this area. Specimens were collected from
three localities, i.e., Weifang, Tangshan and Dalian. The isolated sclerites were identified as Chancelloria. According to trilobite
biostratigraphy of the co-occurring trilobites, the age of Chancelloria sclerites from Dalian is considered as Stage 4, Cambrian Series 2;
the age of sclerites of Chancelloria sclerites from Weifang is considered as Wuliuan-Drumian, Cambrian Miaolingian; the age of
Chancelloria sclerites from Tangshan is considered as Jiangshanian, Furongian, and these sclerites are the latest occurrence in China
and one of the latest occurrences in the world. The Chancelloria sclerites from Cambrian Stage2-Furongian, North China, show that
these sclerites tend to be more regular, the basal surfaces tend to be flatter and the integration and organization of sclerites got
improved. These support the conclusions of previous studies. |
| |
| Keywords: | Chancelloriids Chancelloria Cambrian Furongian North China Platform |
|
| 点击此处可从《高校地质学报》浏览原始摘要信息 |
| 点击此处可从《高校地质学报》下载免费的PDF全文 |
|
