十万大山盆地北缘侏罗纪轮藻的发现及意义

在十万大山盆地北缘的中小型盆地红层中首次发现侏罗纪的轮藻类植物化石.共计2个属,7个种,2个未定种.文章根据轮藻组成特征,讨论了这些中小盆地的地质时代,认为属早中侏罗世,为十万大山盆地侏罗纪红层的研究提供了新的线索.

THE DISCOVERY OF JURASSIC CHAROPHYTES FROM THE NORTHERN MARGIN IN THE SHIWANDASHAN BASIN, AND ITS SIGNIFICANCES

The Jurassic charophytes were the first discovered from the red bed of the middle and small sized basin of the northern margin in the Shiwandashan basin. They are totally 7 species and 2 species indeterminate of 2 genera of the charophytes. In this article, base on characteristics in content of charophytes, the geological age of the red bed of the middle and small size basins are discussed. The discovery of Jurassic charophytes will offer new information for the research in the Jurassic red bed of Shiwandashan basin.