摘要:第一期 中国的三叠系~~··~~~一“杨遵仪李子舜曲立范卢重明周蕙琴周统顺刘桂芳刘本培吴瑞棠(1) 论三叉笔石科(新科)的分枝方式及笔石体的复杂化····”·一····~············...··················~·~···~一赵裕亭(22) 蓟县雾迷山组微化石·····~···············”·······一·~·~···········一·一···············.’’’·······~·~········”一张鹏远(34) 云南昆明附近震旦纪及早寒武世微古植物群及其地层意义····…