First maguviopseid cicada from the Middle-Upper Triassic Tanzhuang Formation in Jiyuan Basin,western Henan,and its stratigraphic significance  

豫西济源盆地中-上三叠统谭庄组幻蝉类的首次发现及其地层学意义

作　　者：ZHANG Qian-qi DU Xu-heng ZHAO Xian-ye ZHANG Hai-chun 张前旗;杜旭恒;赵显烨;张海春(沈阳师范大学古生物学院,沈阳110034;自然资源部东北亚古生物演化重点实验室,沈阳110034;中国科学院南京地质古生物研究所,现代古生物学和地层学国家重点实验室,南京210008;考古学、环境变化和地球化学(AMGC)研究团队,布鲁塞尔自由大学,比利时布鲁塞尔1050)

机构地区：[1]College of Paleontology,Shenyang Normal University,Shenyang 110034,China [2]Key Laboratory of Evolution of Past Life in NE Asia,Ministry of Natural Resources,Shenyang 110034,China [3]State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 210008,China [4]Archaeology,Environmental Changes and Geo-Chemistry,Vrije Universiteit Brussel,Brussels 1050,Belgium

出　　处：《古生物学报》2024年第3期346-353,共8页Acta Palaeontologica Sinica

基　　金：国家自然科学基金(42293280);辽宁省属本科高校基本科研业务费专项资金和沈阳师范大学基本科研业务费专项基金(BS202209)联合资助。

摘　　要：A new fossil insect taxon,Triasomaguviopsis jiyuanensis Zhang Q.et Zhang H.gen.et sp.nov.,is established based on a specimen from the Upper Member of the Tanzhuang Formation,Jiyuan Basin,western Henan Province,central China,and is assigned to the family Maguviopseidae of the superfamily Prosboloidea(Hemiptera,Cica domorpha).This new taxon ischaracterized by smaller granular tegmen,ScP+RA first forked near its mid-length,MP forked more toward apex of ScP+R with three terminals,and singular and sinuous CuA2.This new discovery extends the palaeogeographic distribution of Maguviopseidae to the Jiyuan Basin,increases diversity of this family and has the potential in biostratigraphic correlations.Insects from the Tanzhuang Formation may belong to the Tongchuan Entomofauna from the Ordos Basin,which has a close relationship with the Madygen Entomofauna from Kyrgyzstan.本文根据一枚产自华中地区豫西济源盆地谭庄组上段的昆虫化石标本建立1新属新种——济源三叠幻蝉(Triasomaguviopsis jiyuanensis Zhang Q.et Zhang H.gen.et sp.nov.),归入原蝉总科幻蝉科(半翅目,蝉亚目)。本新类群以盖翅较小且具瘤、ScP+RA在盖翅中部初次分支、MP脉三分支且初次分支水平处晚于ScP+RA脉、CuA脉弯曲无分支为特征。幻蝉科的古地理分布范围扩展至济源盆地,该科分异度增加并具备生物地层对比潜力。谭庄组的昆虫化石可归入鄂尔多斯盆地的“铜川昆虫群”,并且“铜川昆虫群”与吉尔吉斯斯坦的“Madygen昆虫群”关系密切。

关 键 词：Triasomaguviopsis jiyuanensis gen.et sp.nov. Tanzhuang Formation Middle-Late Triassic Ordos Basin central China 

分 类 号：P534.51[天文地球—古生物学与地层学] P535[天文地球—地质学] Q915[生物学—古生物学]