摘要
报道ConiopterisBrongniart属一新种。标本保存良好,有营养羽片和生殖羽片,小羽片、孢子囊群的细节都有良好的显示。标本采自甘肃省张掖市平山湖乡的青土井组下段,其时代为中侏罗世早期。
Abstract:The fossil plant reported here is a new species of COniopteris collected from the MiddleJurassic Qingtujing Formation in Gansu Province,including well--preserved sterile and fertile pinnae,in association with Pterophyllum sp.,Pityophyllum of.longifolium(Nathorst)Moeller and P.staratschini (Heer)emend.Nathorst in the same specimens.Besides,according to Zhang'S determinative records,there also exist Cladophlebis sp.,Nilssonia sinensis Yabe et Oishi,Czekanowskia rigida Heer and Taeniopteris sp.in thesame bed
出处
《古生物学报》
CAS
CSCD
北大核心
1996年第2期241-247,260-262,共7页
Acta Palaeontologica Sinica
基金
中国科学院古生物学与古人类学科基础研究特别支持费课题