贵州镇远竹坪地区下寒武统三叶虫新材料

SOME TRILOBITES OF LOWER CAMBRIAN FORM ZHUPING AREA

贵州镇远竹坪地区寒武纪时处于扬子区与江南区之间的过渡区。区内各组地层均产出代表性的三叶虫。描述了产于镇远竹坪地区下寒武统中的部分三叶虫。计有５属５种及２未定种：Ｒｅｄｌｉｃｈｉａ（ｐｔｅｒｏｒａｄｌｉｃｈｉａ）ｍｕｒａｋａｍｉ；Ｒ．（Ｐ．）ｍｕｒａｋａｍｉｉｎ－ｔｅｒｍｅｄｉａ；Ｗｕｔｉｎｇａｓｐｉｓｓｐ．；Ａｎｔａｇｍｕｓｃｆ．ｍｅｒｕｓ；Ａ．ｄａｐｉｎｅｎｓｉｓ；Ｙｕｅｈｓｉｅｕｓｚｅｌａｃｆ．ｍａｇｎａ；Ｏｌｅｎｏｉｄｅｓｓｐ．。这些三叶虫的产出，具有明显的古生物地层及古地理意义。

In Cambrian,Zhuping of Zhenyuan county ,Guizhou province,was located in the transitional zone between the Yangtze platform and the Jiangnan area.This area abounds in fossils representative of such living environment.The authors give a description of some trilobites of Lower Cambrian from Zhuping,namely,Redlichia (Pteroredlichia)murakamii,R.(P.)murakamii intermedia,Wutingaspis sp .,Antagmus cf .merus,A.dapingensis,Yuehsieuazella cf . magna,Olenoides sp.,among which Olenoides is of greater importance.The specimen discovered here shows that this district belongs to the fifth location area of Olenoides in Lower Cabrian in the world.The discovery contributes to the division and correlation of the strata and to the study of paleontolopy and paleongeography.