Electrodysagrion lini gen. et sp. nov., the oldest Dysagrionini (Odonata: Zygoptera: Dysagrionidae) from mid-Cretaceous Burmese amber |
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| Affiliation: | 1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;2. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region;3. Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum national d''Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France;4. Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK;5. Goglio (Tianjin) Packaging Co. Ltd, No. 99, West 11th Avenue, Airport Economic Area, Tianjin, China;6. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing 100101, China;1. College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, PR China;2. PO Box 4680, Chongqing 400015, PR China;3. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013-7012, USA;1. Department of Ecology–Animal Ecology, Faculty of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35043 Marburg, Germany;2. Entomologie, Institut de Systématique, Évolution, Biodiversité, ISYEB–UMR 7205–CNRS, MNHN, UPMC, EPHE, Muséum national d’histoire naturelle, Sorbonne Universités, 57, rue Cuvier, CP 50, 75005 Paris, France;3. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, People''s Republic of China;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;2. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China;3. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing 100101, China;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;2. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region;3. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing 100101, China;4. Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK;5. Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum national d''Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005 Paris, France;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China;2. Lebanese University, Faculty of Science II, Fanar, Natural Sciences Department, Fanar – Matn, PO Box 26110217, Lebanon;3. Muséum National d''Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, Sorbonne Universités, 45 rue Buffon, F-75005 Paris, France |
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| Abstract: | The dysagrionid damselflies are relatively diverse in Burmese amber, with two genera already recorded. A new dysagrionid damselfly, Electrodysagrion lini Zheng, Nel and Wang, gen. et sp. nov., corresponding to the oldest record of the tribe Dysagrionini, is described herein. It has the unique ‘sieblosiid-dysagrionine’ type of discoidal cell. It differs from other genera of Dysagrionini in having no antenodal crossveins distal of Ax2, Arc aligned with Ax2, and only one row of cells in the cubito-anal area below the nodus. This find puts the origin of Dysagrionini back to at least the mid-Cretaceous. |
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| Keywords: | Dysagrionidae Dysagrionini Zygoptera Cenomanian Cretaceous Burmese amber |
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