辽宁早石炭世地层中的轮藻化石

CHAROPHYTES IN LOWER CARBONIFEROUS OF LIAONING PROVINCE

本文描述了采自于辽东和辽西早石炭世地层中的轮藻化石，共鉴定出４个属，它们是ＧｅｍｍｉｃｈａｒａＺ．Ｗａｎｇ，１９８４；ＰａｉｔｌｅｏｃｈａｒａＢｅｌｌ，１９２２；ＳｔｏｍｏｃｈａｒａＬ．Ｇｒａｍｂａｓｔ，１９６１；ＰａｒａｃｕｎｅａｔｏｃｈａｒａＺ．Ｗａｎｇ，１９８４．这些轮藻化石在华北的石炭纪地层中是首次发现，其中Ｇｅｍｍｉｃｈａｒａｃｆ．ｈｕｎａｎｅｎｓｉｓ一种最初发现于湖南下石炭统测水组，如今又发现在辽东高台子组，与早石炭世大植物化石及孢粉共生。

The Eady Carbonifeeerous Charophytes discovered from Gaotaizi Formation in East Liaoning and from lower Yangjiazhangzi Formation in West Liaoning are four genuses,name-ly Gemmichara. Z.Wang,1984;Paiaeochara Bell,1922;Stomochara L.Grambast,1961;Paracuneatochara Z.Wang,1984.The discovery of Gemmichara cf.hunanense from the LowerCarboniferous are important,because Trochiliscalae was regarded as extinct in the UpperDevonian or Lower Carboniferous before.Some of these fossils are the first record found in the Lower Carboniferous in China,which are important for studing the evolution of the Charophytes.