| 燕辽生物群叶肢介动物群组成和演化* |
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| 引用本文： | 李罡.燕辽生物群叶肢介动物群组成和演化*[J].古地理学报,2023,25(2):368-381. |
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| 作者姓名： | 李罡 |
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| 作者单位： | 1.现代古生物学和地层学国家重点实验室,中国科学院南京地质古生物研究所,江苏南京 210008;2.中国科学院生物演化与环境卓越创新中心,江苏南京 210008 |
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| 基金项目： | *中国科学院战略性科技先导专项(B类)(编号: XDB26000000)和国家国家自然科学基金项目(编号: 41972007,41572006,42288201)资助 |
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| 摘 要： | 中国北方著名中、晚侏罗世的燕辽生物群含有丰富的叶肢介动物群。早期燕辽生物群也称为道虎沟生物群,主要产出层位为海房沟组,含有三饰叶肢介动物群,主要分子包括: 海房沟三饰叶肢介(Triglypta haifanggouensis)、滦平三饰叶肢介(T.luanpingensis)和平泉三饰叶肢介(T. pingquanensis)。晚期燕辽生物群又可称为玲珑塔生物群,主要产出层位为髫髻山组,含有丰富的叶肢介化石,主要分子包括: 建昌三饰叶肢介(Triglypta jiancangensis)、玲珑塔辽西叶肢介(Liaoxiestheria linglongtaensis)、大西山玲珑塔叶肢介(Linglongtaestheria daxishanensis)和青龙玲珑塔叶肢介(Linglongtaestheria qinglongensis)。文中总结了北方雕饰叶肢介(Aquilonoglypta)、柴达木叶肢介(Qaidamestheria)和针孔叶肢介(Punctatestheria)的最新研究成果,支持将柴达木叶肢介、辽西叶肢介和玲珑塔叶肢介划归北方雕饰叶肢介科。同时,三饰叶肢介是由针孔叶肢介演化而来,与柴达木叶肢介并无直接演化关系。
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| 关 键 词： | 侏罗纪 叶肢介动物群 道虎沟生物群 玲珑塔生物群 燕辽生物群 |
| 收稿时间： | 2023-02-27 |
Clam shrimp fauna of the Jurassic Yanliao Biota: composition and evolution |
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| LI Gang.Clam shrimp fauna of the Jurassic Yanliao Biota: composition and evolution[J].Journal of Palaeogeography,2023,25(2):368-381. |
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| Authors: | LI Gang |
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| Institution: | 1.State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences,Nanjing 210008, China;2.Center for Excellence in Life and Palaeoenvironment,Chinese Academy of Sciences,Nanjing 210008,China |
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| Abstract: | The well-known Middle-Late Jurassic Yanliao Biota contains abundant and excellently preserved terrestrial fossils. It can be subdivided into the early Yanliao Biota,i.e. the Daohugou Biota,and the late Yanliao Biota,i.e. the Linglongta Biota,respectively. The Daohugou Biota contains a triglyptids clam shrimp fauna,including Triglypta haifanggouensis,T. luanpingensis and T.pingquanensis. The Linglongta Biota contains a triglyptids-aquilonoglyptids clam shrimp fauna,comprising Triglypta jianchangensis,Liaoxiestheria linglongtaensis,Linglongtaestheria daxishanensis and Linglongtaestheria qinglongensis. According to the latest SEM research results,Qaidamestheria,Liaoxiestheria and Linglongtaestheria should be assigned to the family Aquilonoglyptidae. Punctatestheria,ornamented with evenly distributed punctae,first occurred in the Lower Jurassic Badaowan Formation in Junggar Basin,and gave rise to Triglypta in the late Middle Jurassic. Qaidamestheria does not have direct evolutionary relationship with Triglypta. |
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| Keywords: | Jurassic Clam shrimp fauna Daohugou Biota Linglongta Biota Yanliao Biota |
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