期刊
PALEONTOLOGICAL JOURNAL
卷 43, 期 6, 页码 652-659出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S0031030109060082
关键词
China; Coleoptera; Jurassic; new genus
类别
资金
- Ministry of Science and Technology of China [2006CB806400]
- National Natural Science Foundation of China [40872015, 40523004, 40632010]
- Russian Foundation for Basic Research [07-0492105-GFEN-a]
- Presidium, Russian Academy of Sciences
Daohugounectes primitivus, a new genus and species of coptoclavid beetles, is described from 67 fossil larvae from the Jurassic locality of Daohugou, northeastern China. It differs from other coptoclavids in the combination of the following characters: lateral lobes of nasale present; legs relatively short, with tarsi flat and slightly dilated; abdominal tergite VIII almost circular; derivative of abdominal segment IX present; urogomphi short; and helical thickening of tracheae weak. Most of these features are plesiomorphic for the family Coptoclavidae and the superfamily Dytiscoidea. Among dytiscoids, a derivative of abdominal segment IX is present only in the larvae of the recently discovered relic family Aspidytidae.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据