新泰蒙阴盆地无坊子组

FANGZI FORMATION UNEXISTED IN XINTAI-

通过对新泰市汶南镇朝阳村至庄家庄一线北侧一套含煤地层的观察和化石采集，共采到植物化石２０余件，经鉴定有Ｓｐｈｅｎｏｐｈｙｌｕｍｏｂｌｏｎｇｉｆｏｌｉｕｍ（Ｇｅｒｍ．ｅｔＫａｕｌｆ）Ｕｎｇ．，Ｎｅｕ－ｒｏｐｔｅｒｉｓｏｖａｔａＨｕｆｍ．，Ｎ．ｐｌｉｃａｔａＳｔｅｒｎｂ．，Ｎ．ｃｆ．ｐｌｉｃａｔａＳｔｅｒｎｂ．，Ｎ．ｓｐ．，Ｐｅｃｏｐｔｅｒｉｓｃｆ．ｃａｎｄｏｌ－ｌｅａｎａＢｒｏｎｇｎ．，ＣｏｒｄａｉｔｅｓｓｃｈｅｎｋｉＨａｌｅ，ＳａｍａｒｏｐｓｉｓｓｉｎｅｎｓｉｓＨａｌｅ５属８种。该植物组合属我国早期华夏植物群〔１〕，时代为晚石炭世。含该植物组合的地层应为太原组，证明新泰蒙阴盆地无坊子组。

hrough observation and fossils collection of coal-bearing strata in north part of Chaoyangcun to Zhuangjiazhuang in Wennan town of Xintai city,more than 20 plant fossils were collected which were identified as Sphenophyllum oblongifolium(Germ,et.Keulf)Ung.,Neuropteris ovata Huffm;N.plicata Sternb,N.cf.plicata Sternb.,N.sp.,Pecopteris cf.candolleana Brongn.,Cordaites schenkii Halle and Samaropsis sinensis Halle,and grouped to five genera and eight species.The plant fossils′ association belongs to Paleocathaysian plant′s group with age at late Carboniferous period.The strata bearing such plant′s association should be known as Taiyuan formation.Therefore,it proves there is no Fangzi formation in Mengyin-Xintai basin.