“江南古陆”东段上溪群变质岩中水母化石的发现

被引：5

作者：

陈冠宝 ^{[1
]}

杨清和 ^{[2
]}

徐树桐 ^{[2
]}

刘贻灿 ^{[3
]}

胡远超 ^{[1
]}

周栗 ^{[1
]}

机构：

[1] 安徽省古生物化石科学研究所

[2] 安徽省地质调查院

[3] 中国科学技术大学地球与空间科学学院

来源：

地质通报 | 2006年 / 08期

关键词：

Jiangnan Old Land; southern Anhui; Shangxi Group; cf; Aurelia;

D O I：

暂无

中图分类号：

Q915 [古动物学];

学科分类号：

0709 ; 070903 ;

摘要：

The medusae fossil from the metamorphic rock of Mukeng Formation of Shangxi Group in the east segment of the "Jiangnan Old Land" is an important evidence to time the age of the host strata and disintegrate the host metamorphic stratigraphy. The medusae fossil is different from that of Edicara and Chengjiang fauna. Morphologically, it is similar to the Aurelia occurred in pelagic sea today, and it is termed as cf. Aurelia. It is possibly the later generation of the today′s Aurelia and must be generated in the time later than that of Chengjiang fauna. The occurrence of the cf. Aurelia indicates that the age of the host metamorphic rocks are probably in the range of Cambrian to Ordovician rather than that of Middle Proterozoic as previously suggested. Therefor, the metamorphic stratigraphy in the east segment of the "Jiangnan Old Land", at least the Mukeng Formation, was not the sediments of Proterozoic as previously regarded.

引用

页码：995 / 996

页数：2

共 7 条

[1] 皖南上溪群中的虫牙类和疑源类化石及其地质意义 [J].