| First Record of Fossil Mesocupes from China （Coleoptera： Archostemata： Cupedidae） |
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| 作者姓名： | TAN Jingjing HUANG Diying REN Dong |
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| 作者单位： | [1]College of Life Sciences, Capital Normal University, Beijing 100037, China [2]Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing 210008, China |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划)
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北京市自然科学基金
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Scientific Research Key Program
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PRH (IHLB) Project of Beijing Municipal Commission of Education |
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| 摘 要： | Three new fossil species of the genus Mesocupes of fossil cupedids,M.angustilabialis sp. nov.,M.latilabialis sp.nov.and M.collaris sp.nov.,are described from the Jiulongshan Formation of Inner Mongolia,China.These new species are the first three records of fossil Mesocupes in China as well as the oldest ones in the world now.This finding also extends the geographical distribution of this genus from Central to East Asia.In addition,based on the ratio of the length of the last to the penultimate abdominal ventrites of new beetles distinctly lower than that of the species from the Karabastau Formation,the age of Daohugou fossil-bearing beds might be older than that of Karatau assemblage and consequently of Middle Jurassic.
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| 关 键 词： | 新物种 九龙山组 中国 地质学 |
| 修稿时间： | 2006-10-18 |
First Record of Fossil Mesocupes from China (Coleoptera: Archostemata: Cupedidae) |
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| Authors: | TAN Jingjing HUANG Diying REN Dong |
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| Abstract: | Three new fossil species of the genus Mesocupes of fossil cupedids, M. angustilabialis sp. nov., M. latilabialis sp. nov. and M. collaris sp. nov., are described from the Jiulongshan Formation of Inner Mongolia, China. These new species are the first three records of fossil Mesocupes in China as well as the oldest ones in the world now. This finding also extends the geographical distribution of this genus from Central to East Asia. In addition, based on the ratio of the length of the last to the penultimate abdominal ventrites of new beetles distinctly lower than that of the species from the Karabastau Formation, the age of Daohugou fossil-bearing beds might be older than that of Karatau assemblage and consequently of Middle Jurassic. |
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| Keywords: | Cupedidae Mesocupes new species Jiulongshan Formation China |
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