First Record of Fossil Mesocupes from China(Coleoptera:Archostemata:Cupedidae)  

作　　者：TAN Jingjing HUANG Diying REN Dong 

机构地区：[1]College of Life Sciences, Capital Normal University, Beijing 100037, China [2]Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing 210008, China

出　　处：《Acta Geologica Sinica(English Edition)》2007年第5期688-696,共9页地质学报（英文版）

基　　金：This research is supported by the National Natural Science Foundation of China （Nos. 30025006, 30370184, 30430100, 40672013）;Major Basic Research Projects （2006CB806400） of MST of China;Beijing Natural Science Foundation Program （No. 5032003）;Scientific Research Key Program （KZ200410028013） and PRH （IHLB） Project of Beijing Municipal Commission of Education.

摘　　要：Three new fossil species of the genus Mesocupes of fossil cupedids, M. angustilabialis sp. nov., M. latilabialis sp. nov. and M. collaris sp. nov., are described from the Jiulongshan Formation of Inner Mongolia, China. These new species are the first three records of fossil Mesocupes in China as well as the oldest ones in the world now. This finding also extends the geographical distribution of this genus from Central to East Asia. In addition, based on the ratio of the length of the last to the penultimate abdominal ventrites of new beetles distinctly lower than that of the species from the Karabastau Formation, the age of Daohugou fossil-bearing beds might be older than that of Karatau assemblage and consequently of Middle Jurassic.Three new fossil species of the genus Mesocupes of fossil cupedids, M. angustilabialis sp. nov., M. latilabialis sp. nov. and M. collaris sp. nov., are described from the Jiulongshan Formation of Inner Mongolia, China. These new species are the first three records of fossil Mesocupes in China as well as the oldest ones in the world now. This finding also extends the geographical distribution of this genus from Central to East Asia. In addition, based on the ratio of the length of the last to the penultimate abdominal ventrites of new beetles distinctly lower than that of the species from the Karabastau Formation, the age of Daohugou fossil-bearing beds might be older than that of Karatau assemblage and consequently of Middle Jurassic.

关 键 词：Cupedidae Mesocupes new species Jiulongshan Formation China 

分 类 号：P5[天文地球—地质学]