贵州剑河八郎“清虚洞组”叉尾虫科Dorypygidae三叶虫  

Dorypygidae Trilobites from the Tsinghsutung Formation in Balang,Jianhe County,Guizhou Province

作　　者：罗绣春[1] 赵元龙[1] 王平丽[2] 杨宇宁[1] 张培兴[1] 潘永金[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵阳550025 [2]山东科技大学地质科学与工程学院,青岛266590

出　　处：《贵州大学学报（自然科学版）》2013年第3期39-45,共7页Journal of Guizhou University:Natural Sciences

基　　金：国家重点基础研究发展规划项目(2013CB835002);国家自然科学基金(41172005);贵州省国际科技合作项目(黔科合外G字[2010]7001)联合资助;2013全国地层委员会基金资助

摘　　要：贵州剑河八郎松山"清虚洞组"中产有包括软躯体化石在内的特异埋藏化石群,三叶虫是其中的主要类群。本文描述的叉尾虫科三叶虫有2属2种1相似种2未定种:副合格拟油栉虫Olenoides paraptus,湖北拟油栉虫O.hubeiensis,横宽拟油栉虫(相似种)O.cf.transversus,库廷虫(未定种)Kootenia sp.1,K.sp.2.Olenoides的丰度、分异度较高,其中O.paraptus和O.hu-beiensis 2个种均见于上覆地层凯里组,O.cf.transversus与产于凯里组的O.transversus很相似,两者组合特征相似,说明凯里组叉尾虫科主要分子Olenoides层位已下延至"清虚洞组"。Ole-noides的出现,不仅为"清虚洞组"的三叶虫组合及生物地层提供了新信息,也为叉尾虫科三叶虫在"清虚洞组"至凯里组形成期间的分类及演化研究提供了新材料。The Tsinghsutung Formation at Songshan, Balang Village, Jianhe County, Guizhou Province yields an exceptional-preserved lagerst？ tte, whiCh has soft-bodied fossils, as well as trilobites as the dominate members. Dorypygidae trilobites described here include 2 genera, 2 species, 1 conformis species and 2 indefinite species, which are Olenoides paraptus, Olenoides hubeiensis, Olenoides cf. transverses, Kootenie sp. 1 and Kootenie sp. 2. Songshan has relatively abundant and high diversity of Olenoides, two species of which have been found in the o- verlying Kaili Formation. The similarity of trilobite assemblages of the two formations indicates the main member- Olenoides of Dorypygidae in the Kaili Formation has ＂extended＂ into the Tsinghsutung Formation. The discovery of Olenoides not only provides new information for trilobite assemblage and biostratigraphy of the ＂Tsinghsutung Formation＂, but also contributes new materials to the taxonomy and evolutionary research of Dorypygidae trilobites during the Tsinghsutung Formation and the Kaili Formation periods.

关 键 词：拟油栉虫Olenoides 库廷虫Kootenia 叉尾虫科三叶虫 剑河八郎 清虚洞组 

分 类 号：P534.42[天文地球—古生物学与地层学]