脉羊齿属小羽片化石鉴定方法的改进

Improved Identification Method of the Neuropteris Pinnula

脉羊齿属(Neuropteris)是裸子植物门(Gymnospermae)、种子蕨纲(Pteridospermopsida)、脉羊齿类(Neuropterides)的形态属,脉羊齿属的小羽片较大、易脱落,常被单独保存为化石。在对秦皇岛市柳江盆地石门寨地区采集的脉羊齿属小羽片化石鉴定过程中,发现使用"脉羊齿属检索表"的局限。结合前人学者对脉羊齿属鉴定的方法和过程,参考相关文献、书籍及其中的图版和复原图,利用数值分析及统计方法,改进了脉羊齿属小羽片化石的鉴定方法,称为"脉羊齿属小羽片化石的数值特征鉴定法"。继而使用"数值特征鉴定法"鉴定石门寨地区的脉羊齿属小羽片化石标本,对比相关书籍和图册中脉羊齿属小羽片化石后,确定了"数值特征鉴定法"的实用性和准确性。

Neuropteris is the form genus from Gymnospermae,Pteridospermopsida,Neuropterides. Neuropteris pinnula is large and easy to fall off,and is usually stored separately as fossil. In the process of identifying the pinnula fossil collected in shimenzhai area,Liujiang Basin,Qinhuangdao City,found the limitation of using the search table of the Neuropteris. Combined with the method and process of identification of Neuropteris by previous scholars,referring to relevant literature,books and their plates and restoration maps,and using numerical analysis and statistical methods,the identification method of Neuropteris is improved,which is called " numerical feature identification method of Neuropteris". Then,using the " numerical feature identification" to identify the samples of the Neuropteris pinnula in shimenzhai area. After comparing the related books and atlas,determining the practicability and accuracy of the " numerical feature identification".