New Cretaceous snakeflies highlight the morphological disparity of Mesoraphidiidae and its response to the Cretaceous Terrestrial Revolution
文献类型： 外文期刊
作者： Lu, Xiumei 1 ; Stubbs, Thomas L. 3 ; Zhuo, De 4 ; Xu, Chunpeng 5 ; Donoghue, Philip C. J. 2 ; Liu, Xingyue 6 ;
作者机构： 1.Shanghai Acad Agr Sci, Inst Ecol & Environm Protect, Shanghai, Peoples R China
2.Univ Bristol, Sch Earth Sci, Bristol Palaeobiol Grp, Bristol, England
3.Open Univ, Fac Sci Tecnol Engn & Math, Sch Life Hlth & Chem Sci, Milton Keynes, England
4.Beijing Xiachong Amber Museum, Beijing, Peoples R China
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
6.China Agr Univ, Dept Entomol, Beijing, Peoples R China
关键词： Raphidioptera; macroevolution; diversity; disparity; Myanmar amber
期刊名称：INSECT SYSTEMATICS AND DIVERSITY （ 影响因子：3.2； 五年影响因子：2.9 ）
ISSN：
年卷期： 2024 年 8 卷 4 期
页码：
收录情况： SCI
摘要： Mesoraphidiidae is an extinct family of the order Raphidioptera with an evolutionary history that is largely unexplored. Here, we uncovered the evolutionary history of Mesoraphidiidae using phylogenetic comparative approaches, based on an updated morphological dataset, with an additional description of two new genera and species with distinct cephalic elongation, Dracoraphidia brachystigma gen. et sp. nov. and Teratocephala macrostigma gen. et sp. nov., from mid-Cretaceous Myanmar amber. Phylogenetic analysis shows their affinity to the subfamily Alloraphidiinae. Our results show that the radiation of species diversity and morphological disparity of Mesoraphidiidae dates back to the Lower Cretaceous and experienced a distinct peak approximately 130-118 million years ago (Ma). This timeframe aligns with the Cretaceous Terrestrial Revolution (KTR), a period from 125 to 80 Ma marked by the proliferation of flowering plants and their interactions with insects. The habitat preference of mesoraphidiid larvae to gymnosperm plants might have led to their extinction during the KTR, with the associated decline of gymnosperm diversity. Despite reduction in the occupation of morphospace by Mesoraphidiinae, there is surprising expansion of morphospace occupation by Alloraphidiinae in the Upper Cretaceous, possibly related to cephalic elongation, which may have enhanced pollen-feeding or predation ability, in response to extrinsic changes to biodiversity and ecosystems during the KTR. This study enriches our understanding of the macroevolution of snakeflies during the Mesozoic and provides new evidence for the impact of the KTR on insects.
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