Prophaenognatha, a New Aclopinae Genus from the Yixian Formation, China and Its Phylogenetic Position Based on Morphological Characters (Coleoptera: Scarabaeidae) |
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| Authors: | BAI Ming REN Dong and YANG Xingke |
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| Institution: | 1 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; 2 College of Life Sciences, Capital Normal University, Beijing 100037, China,1 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; 2 College of Life Sciences, Capital Normal University, Beijing 100037, China and 1 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; 2 College of Life Sciences, Capital Normal University, Beijing 100037, China |
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| Abstract: | Prophaenognatha robusta gen. et sp. nov. (Scarabaeoidea: Scarabaeidae: Aclopinae), the best‐preserved aclopine fossil so far, is described and illustrated from the Upper Jurassic‐Lower Cretaceous Yixian Formation of the Jehol Biota, western Liaoning Province, NE China. The key to extinct and extant genera of Aclopinae is given and the monophyly of extant and fossil Aclopinae lineages is supported by five character states. The new taxon provides evidence about the evolution of Scarabaeoidea with its phylogenetic position inferred based on 68 morphological characters. |
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| Keywords: | Jurassic-Cretaceous scarab beetles Aclopinae Prophaenognatha taxonomy Jehol biota China |
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