| The Insect Oviposition Firstly Discovered on the Middle Jurassic Ginkgoales Leaf from Inner Mongolia, China |
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| 作者姓名： | NA Yuling SUN Chunlin LI Tao and LI Yunfeng |
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| 作者单位： | 1 The Key Laboratory for Evolution of Past Life and Environment in Northeast Asia, Ministry of Education,Jilin University, Changchun 130026, Jilin, China
2 Research Center of Palaeontology & Stratigraphy, Jilin University, Changchun 130026, Jilin, China |
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| 基金项目： | This study was financially supported by China Geological Survey Grant (1212011120149), the National Natural Science Foundation of China (41172009), the Doctoral Fund of Ministry of Education of China (20100061110034), Project “111”, China and the Program for Introducing Talents of Discipline of Universities of China. |
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| 摘 要： | Although the evidence of insect oviposition on plant organs has been reported from the late Paleozoic to the Miocene, record from the middle Jurassic is still blank. This paper reports a significant evidence of insect oviposition on plant leaf from the middle Jurassic for the first time. The ovipositional scar is distributed on the abaxial surface of Sphenobaiera leaf（Ginkgoales） from the middle Jurassic Daohugou Formation of Inner Mongolia, China. A new ichnospecies Paleoovoidus venustus sp. nov. is described. The scar is elliptic to oval, arranged in longitudinal rows between leaf veins with almost regular distance, with its long axis paralleling to the leaf venation. This discovery adds new information to the morphology of insect endophytic oviposition probably produced by Odonata existed in a terrestrial ecosystem ~165 Ma ago. The new materials also provide important data for the study of insect reproductive biology, plant-insect interaction and coevolution, as well as understanding the paleoclimate and palaeoenvironment during that time in northeast China.
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| 关 键 词： | 中国东北地区 中侏罗世 内蒙古 昆虫 产卵 陆地生态系统 植物器官 生殖生物学 |
| 收稿时间： | 2013/8/17 0:00:00 |
| 修稿时间： | 2013/11/30 0:00:00 |
The Insect Oviposition Firstly Discovered on the Middle Jurassic Ginkgoales Leaf from Inner Mongolia,China |
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| Authors: | NA Yuling SUN Chunlin LI Tao LI Yunfeng |
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| Institution: | [1]The Key Laboratory for Evolution of Past Life and Environment in Northeast Asia, Ministry of Education,Jilin University, Changchun 130026, Jilin, China [2]Research Center of Palaeontology ＆ Stratigraphy, Jilin University, Changchun 130026, Jilin, China |
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| Abstract: | Although the evidence of insect oviposition on plant organs has been reported from the late Paleozoic to the Miocene, record from the middle Jurassic is still blank. This paper reports a significant evidence of insect oviposition on plant leaf from the middle Jurassic for the first time. The ovipositional scar is distributed on the abaxial surface of Sphenobaiera leaf(Ginkgoales) from the middle Jurassic Daohugou Formation of Inner Mongolia, China. A new ichnospecies Paleoovoidus venustus sp. nov. is described. The scar is elliptic to oval, arranged in longitudinal rows between leaf veins with almost regular distance, with its long axis paralleling to the leaf venation. This discovery adds new information to the morphology of insect endophytic oviposition probably produced by Odonata existed in a terrestrial ecosystem ~165 Ma ago. The new materials also provide important data for the study of insect reproductive biology, plant-insect interaction and coevolution, as well as understanding the paleoclimate and palaeoenvironment during that time in northeast China. |
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| Keywords: | Fossil insect egg Oviposition Paleoovoidus Ginkgoales Middle Jurassic China |
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