First record of fossil comb-clawed beetles of the tribe Cteniopodini (Insecta: Coleoptera: Tenebrionidae) from the Jehol Biota (Yixian formation of China), Lower Cretaceous |
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| Institution: | 1. Center for Research and Education on Biological Evolution and Environments, School of Earth Sciences and Engineering, Nanjing University, 210023 Nanjing, Jiangsu, China;2. Institut für Geologische Wissenschaften, Fachbereich Geowissenschaften, Freie Universität Berlin, Malteserstrasse 74-100, D-12249 Berlin, Germany;3. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;1. Center for Research and Education on Biological Evolution and Environments, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China;2. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China;3. Institut für Geologische Wissenschaften, Fachbereich Geowissenschaften, Freie Universität Berlin, Malteserstrasse 74–100, D–12249 Berlin, Germany;4. School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork T23 TK30, Ireland.;5. School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK.;6. Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China |
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| Abstract: | A new genus and species Platycteniopus diversoculatus is described from the Lower Cretaceous (Yixian Formation, Laoning, China). The new genus belongs to the tribe Cteniopodini as shown by six visible abdominal ventrites (ventrite 6 is sternite VIII), in comparison with other Alleculinae which have five abdominal ventrites; epistomal canthus of eyes not emarginate; anterior margin of first abdominal ventrite not bordered. On the other hand, Platycteniopus diversoculatus has some characters not typical for Cteniopodini: bifid mandibles and serrate antennae. The oldest representative of the tribe has combination of characters of tribes Alleculini and Cteniopodini. Recent representatives of Cteniopodini are associated with flowers of angiosperms, while other groups of Alleculinae, especially Gonoderini and Alleculini are mainly saprophagous and lichenophagous. Age of Platycteniopus finding coincides with the beginning of the angiosperms heyday. |
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| Keywords: | Tenebrionidae Alleculinae New genus and species Lower Cretaceous Jehol Biota China |
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