广东河源早侏罗世辛涅缪尔期菊石动物群的发现及生物地层学意义
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本文为国家自然科学基金资助项目(编号:42293280、42372045、42372019)和古生物学与油气地层应用全国重点实验室自主部署项目(编号:LPPS 20231102)的成果


Discovery and biostratigraphic significance of Early Jurassic Sinemurian ammonite fauna in Heyuan, Guangdong
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  • 古生物学与油气地层应用全国重点实验室,中国科学院南京地质古生物研究所,南京, 210008    
  • 广东省河源博物馆,广东河源, 517000    
  • 广东省河源恐龙化石保护区管理处,广东河源, 517000    
  • 中国科学院古脊椎动物与古人类研究所,北京, 100044    
  • 广东省河源博物馆,广东河源, 517000    
  • 广东省河源博物馆,广东河源, 517000    
  • 广东省河源博物馆,广东河源, 517000    
  • 中国矿业大学资源与地球科学学院, 江苏徐州, 221116    
  • 广东省地质调查院,广州, 510110    
  • State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008    
  • Heyuan Museum, Heyuan, Guangdong, 517000    
  • Heyuan Dinosaur Fossil Reserve Management Office, Heyuan, Guangdong, 517000    
  • Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 10044    
  • Heyuan Museum, Heyuan, Guangdong, 517000    
  • Heyuan Museum, Heyuan, Guangdong, 517000    
  • Heyuan Museum, Heyuan, Guangdong, 517000    
  • School of Resources and Geosciences,China University of Mining and Technology, Xuzhou, Jiangsu, 221116    
  • Guangdong Geological Survey Institute, Guangzhou, 510110    
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    摘要:

    本文报道了产自广东河源万绿湖畔周边地区早侏罗世地层中的Coroniceras及Paracoroniceras菊石动物群。从整个菊石动物群面貌来看,可以与广东粤北地区、香港地区、福建、西北欧及阿拉斯加等地的Coroniceras—Paracoroniceras组合对比,时代上为早侏罗世西涅缪尔期。与菊石共生的包括腹足类、孢粉化石,我们将在今后开展更加深入的研究以揭示早侏罗世广东河源周边地区古环境与古生态特征。早侏罗世,菊石古生物地理区系主要划分为特提斯区及北方区。特提斯区产有丰富的叶菊石(phylloceratid)及弛菊石(lytoceratid);而在北方区以典型的amaltheids为特征。辛涅缪尔期全球范围广泛发育有白羊菊石亚科Arietitinae分子,如:白羊菊石Arietites,花冠菊石Coroniceras

    Abstract:

    Recently, we discovered the typical Corniceras—Paracononiceras ammonite fauna in the Early Jurassic strata around the Wanl Lake. As far as perspective of ammonite fauna is concerned, it can be compared with the Corniceras—Paracoroniceras assemblages in northern Guangdong, Hong Kong, Fujian; northwestern Europe and Alaska blocks. The age is the Sinemurian of the Early Jurassic. Besides there were some other fossils including gastropods and spore—pollen. We will carry out more in- depth research in the future to reveal the Early Jurassic paleoenvironment and paleoecological characteristics of the surrounding area of Heyuan, Guangdong.In Early Jurassic times, the ammonite fauna shows a differentiation into two biogeographical unites. The Tethyan realm is characterized by a variety of phylloceratids and lytoceratids. Typical elements of boreal realm, on the other hand, are the amaltheids. The Sinemurian Stage is well- known worldwide by the abundance of large- sized Arietitinae (Arietites, Coroniceras), and differentiation of biogeography is not pronounced until Pliensbachian.

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牟林,黄志青,温志军,王强,温豫粤,黄华乐,杜衍礼,孟凡巍,何翔.2025.广东河源早侏罗世辛涅缪尔期菊石动物群的发现及生物地层学意义[J].地质论评,70(2):2025020013,[DOI].
MU Lin, HUANG Zhiqing, WEN Zhijun, WANG Qiang, WEN Yuyue, HUANG Huayue, DU Yanli, MENG Fanwei, HE Xiang.2025. Discovery and biostratigraphic significance of Early Jurassic Sinemurian ammonite fauna in Heyuan, Guangdong[J]. Geological Review,70(2):2025020013.

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历史
  • 收稿日期:2024-12-13
  • 最后修改日期:2025-04-08
  • 在线发布日期: 2024-03-20
  • 出版日期: 2024-03-15