两种带羊齿型叶化石的表皮角质层研究  

Studies on the Epidermal-cuticle From Two Taeniopteris-type Fossil Leaves

作　　者：陈萍[1] 

机构地区：[1]淮南矿业学院地质系

出　　处：《中国矿业大学学报》1995年第1期101-104,共4页Journal of China University of Mining & Technology

摘　　要：本文记述了产于淮南二叠纪煤系地层中的两种带羊齿型叶化石。依据表皮构造特征建立了一个新种Ｎｉｌｓｓｏｎｉａｄｉｖｅｎｉｆｏｒｍｉｓｓｐ．ｎｏｖ．及未定种Ｎｉｌｓｓｏｎｉａｓｐ．，新种下表皮气孔发育，通常由２个保卫细胞及５～６个副卫细胞组成苏铁型单唇式气孔器，普通表皮细胞壁平直无弯曲。This paper deals with two Taeniopteris-type fossil leaves that were found in Permiancoal-bearing strata from Huainan. Nilssonia diveniformis sp.nov.and Nilssonia sp.are established on the basis of the epidermal structure. Stomata ocurr on the lower cuticle,which consist of 2 guard cells and 5 to 6 subsbsidiary cells and are typical cycad-type and haplocheilic stomata.

关 键 词：角质层 气孔 尼尔桑属 叶化石 

分 类 号：Q914.2[天文地球—古生物学与地层学]