YUSHANOGRAPTUS,A NEW GRAPTOLITE GENUS FROM THE NINGKUO SHALE(LOWER ORDOVICIAN)OF YUSHAN,NORTHEASTERN JIANGXI(KIANGSI)

作     者：X.CHEN (Institute of Geology and Paleontology,Academia Sinica)X.R.SUN AND N.R.HAN (Geological College of Fuzhou,Jiangxi) 

出 版 物：《古生物学报》 (Acta Palaeontologica Sinica)

年 卷 期：1964年第2期

页      面：239-240页

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

主　　题：KIANGSI LOWER ORDOVICIAN)OF YUSHAN,NORTHEASTERN JIANGXI YUSHANOGRAPTUS,A NEW GRAPTOLITE GENUS FROM THE NINGKUO SHALE mode length 

摘      要：The new genus Yushanograptus described in the present paper is a monotypic genuswith Yushanograptus separatus *** *** the genotype which is represented by5 specimens securd by one of the writers(Han)in the summer of 1961 from the NingkuoShale at the locality near Lijiapeng of the Yushan district,northeastern Jiangxi(Kiangsi)Province(Field No.F61001).The marked features of the new genus are the two long and slender primary stipesand the Goniograptid type in *** young forms of this new graptolite bear astriking resemblance to the slender Didymograpti,such as Didymograptus gracilis T(?)rn-quist,*** Harris et Thomas *** same is the case in Zygograptus,particul-arly in Zygograptus irregularis Harris et *** the mode of branching of the