2017年04期

辛存林,季健健,王露菡.甘肃窑街中侏罗世 Coniopteris lanzhouensis的微细构造研究 [J].微体古生物学报, 2017, 34(04): 428-439.

XIN Cunlin,JI Jianjian,WANG Luhan.STUDY ON THE MICROSTRUCTURE OF THE MIDDLE JURASSIC CONIOPTERIS LANZHOUENSIS FROM YAOJIE, GANSU PROVINCE, CHINA [J].Acta Micropalaeontologica Sinica, 2017, 34(04): 428-439.

甘肃窑街中侏罗世 Coniopteris lanzhouensis的微细构造研究
辛存林 1 季健健 1 王露菡 1
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+ 作者地址

1西北师范大学 地理与环境科学学院, 兰州 730070

本文对甘肃窑街中侏罗统窑街组采集的真蕨类化石标本进行了描述,通过与相似种的小羽片的形态和大小、羽片排列和间距、羽轴宽度、孢子囊群形态等特征对比,明确该化石植物为 Coniopteris lanzhouensis。通过实验分析揭示了 Coniopteris lanzhouensis的原位孢子基本特征:孢子为四面体,赤道轮廓呈圆三角形,顶角钝圆,三边线微凸或微凹;具三射线,三射线平直且较窄,长度为孢子半径的3/4或延伸至孢子边缘,顶端具与其垂直的褶皱;外壁光滑,壁薄,极面观直径30-40 μm,平均约33 μm;孢子的颜色以浅黄色为主。明确了 Cibotiumspora juncta可能是 Coniopteris lanzhouensis的孢子,后者为前者的母体植物。
语种: 中文   
基金: 国家自然科学基金(41262001)和甘肃省科技支撑基金(1104FKCA116)共同资助。
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