陷胸茎蜂亚科(昆虫纲)化石在我国辽西上侏罗统的发现及其系统演化(英文)  

DISCOVERY OF TREMATOTHORACINAE (INSECTA) IN THE UPPER JURASSIC OF W. LIAONING, CHINA WITH A DISCUSSION OF ITS PHYLOGENY

作　　者：张海春[1] 张俊峰[1] 魏东涛[2] 

机构地区：[1]中国科学院南京地质古生物研究所,南京2100082 [2]中国石油天然气集团公司西北地质研究所,兰州730020

出　　处：《古生物学报》2001年第2期224-228,共5页Acta Palaeontologica Sinica

基　　金：国家重点基础研究发展规划项目! (G2 0 0 0 0 7770 0 ) ;中国科学院知识创新工程项目! (KZCX2 114 ) ;中国科学院资源与生态环境研

摘　　要：描述产自辽宁北票上园地区黄半吉沟上侏罗统义县组下部膜翅目昆虫化石 1新属新种Trema tothoracoidesliaoningensisgen .etsp .nov .,归入葬茎蜂科 (Sepulcidae)中的陷胸茎蜂亚科 (Trematothoracinae)。这是首次在我国发现可靠的陷胸茎蜂化石 ,也是该亚科在侏罗纪的首次报道。分支分析结果表明Trematothoracinae为一单系类群。Thoracotrema与Prosyntexis进化程度较高 ,构成一对姊妹群 ,同时又是Trematothorax的姊妹群 ;Trematothoracoides最为原始 ,为ThoracotremaA new genus and new species, Trematothoracoides liaoningensis gen. et sp. nov., is described here from the lower part of the Upper Jurassic Yixian Formation at Huangbanjigou Village near Shangyuan Town, Beipiao, Liaoning Province, China. This is the first reliable trematothoracin sawfly discovered in China and in the Jurassic Period. The cladistic analysis of Trematothoracinae shows that the subfamily is monophyletic. Trematothoracoides is relatively primitive and forms the sister group to a clade that includes Thoracotrema, Prosyntexis and Trematothorax. Thoracotrema and Prosyntexis are a closely related sister group, which is also the sister group to Trematothorax.

关 键 词：葬式蜂科 陷胸茎蜂亚科 新分类群 系统演化 义县组 辽宁西部 上侏罗统 昆虫化石 

分 类 号：Q915.819.7[天文地球—古生物学与地层学]