中文摘要：

文中对江西二叠系乐平组的角质层化石作了描述,并与河南小风口组（下石盒子组）的标志性植物化石华夏单网羊齿（Gigantonoclea cathaysiana）的模式标本进行比较,确定二者为同种,这就为华南与华北的非海相二叠纪含煤地层建立了对比的基础,在地层对比上是一个极有意义的重大进展。对角质层化石的层位江西乐平组老山段下亚段作了较详细讨论,论证其时代应属冷坞期（Capitanian）而不是吴家坪期。

英文摘要：

The cuticle from the Leping Formation of Jiangxi was described and compared with Gigantonoclea cathaysiana from the Xiaofengkou Formation （the Lower Shihhotse Formation） of Henan. The study results that the fossil cuticle is identical with the latter one and has been ascribed in the same species. Thus, the identification of the cuticle with Gigantonoclea cathaysiana will afford a basic fundament for correlation of non-marine Permian strata both from North and South China. Consequently, a major advance in correlation of the Permian coal-bearing strata is made by the present work. A discussion about the age of the Lower Laoshan Submember of the Leping Formation, i.e. the fossiliferous horizon is made in detail, and it will be concluded that its age should be Capitanian, but not Wuchiapingian as formerly regarded.