| 新疆阿克苏地区寒武纪幸运期早期小壳化石 |
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| 引用本文： | 杨犇,刘鹏举,尚晓冬,蔡习尧,周元.新疆阿克苏地区寒武纪幸运期早期小壳化石[J].地质学报,2023,97(12):4044-4051. |
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| 作者姓名： | 杨犇 刘鹏举 尚晓冬 蔡习尧 周元 |
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| 作者单位： | 中国地质科学院地质研究所，自然资源部地层与古生物重点实验室，北京，100037;中国石化石油勘探开发研究院，北京，100083;陕西中矿联盟矿业有限公司，陕西西安，710061 |
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| 基金项目： | 本文为中国地质调查局项目（编号DD20230221）和国家自然科学基金项目（编号U2244202）联合资助的成果 |
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| 摘 要： | 本文报道新疆阿克苏地区寒武纪幸运期最早期的小壳化石组合。化石产自玉尔吐斯组底部，包括：Protohertzina anabarica Missarzhevsky, 1973、Protohertzina unguliformis Missarzhevsky, 1973、Anabarites trisulcatus Voronova and Missarzhevsky, 1969、Anabarites ternarius Missarzhevsky in Rozanov et al., 1969、Cambrotubulus decurvatus Missarzhevsky in Rozanov et al., 1969、Olivooides sp.、Kaiyangites novilis Qian and Yin, 1984以及海绵骨针化石。据此可以在新疆阿克苏地区玉尔吐斯组下部建立Anabarites trisulcatus-Protohertzina unguliformis组合带。该组合带下界以Anabarites trisulcatus、Protohertzina ungulifo...
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| 关 键 词： | 新疆阿克苏地区 玉尔吐斯组 寒武纪 幸运期 小壳化石 |
| 收稿时间： | 2023/7/13 0:00:00 |
| 修稿时间： | 2023/10/24 0:00:00 |
Early Fortunian small shelly fossils from the Aksu area of Xinjiang, China |
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| YANG Ben,LIU Pengju,SHANG Xiaodong,CAI Xiyao,ZHOU Yuan.Early Fortunian small shelly fossils from the Aksu area of Xinjiang, China[J].Acta Geologica Sinica,2023,97(12):4044-4051. |
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| Authors: | YANG Ben LIU Pengju SHANG Xiaodong CAI Xiyao ZHOU Yuan |
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| Abstract: | Here we report early Cambrian small shelly fossils from the basal Yurtus Formation of various sections (Linkuanggou, Shiairike, Aksu, Penglaiba, Jinlin and Yurtus sections) of Aksu area, Xinjiang. The fossils include: Protohertzina anbarica, Protohertzina unguliformis, Anabarites trisulcatus, Anabarites ternarius, Cambrotubulus decurvatus, Olivooides sp. , Kaiyangites novilis and sponge spicules. A new small shelly fossil zone is proposed herein based on the discovery, i.e. , the Anabarites trisulcatus- Protohertzina unguliformis assemblage zone. Its lower boundary is defined by the first appearance datum of Anabarite trisulcatus, Protohertzina unguliformis, Protohertzina anbarica and Kaiyangites novilis, and the upper boundary defined by their last appearance datum. According to the correlation, the lower Yurtus Formation is considered a deposition of the early Fortunian of Cambrian. |
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| Keywords: | Xinjiang Aksu area Yurtus Formation Cambrian Fortunian small shelly fossils |
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