摘要
甘肃北山地区破城山组层型剖面的地层已强烈褶皱,包括时代分别属于震旦纪、早寒武世晚期、中-晚寒武世、早奥陶世的多个岩组,需要重新修订。过去在该组发现的华南早寒武世早中期的分带化石Eoredilchia纯属误定,它实际上是一个属于早寒武世中-晚期的原油栉虫科(Protolenidae)的三叶虫。
The stratotype of the Pochengshan Formation established by Fan Guolin(1989) in Beishan area, Gansu is a section with the strongly folded strataIt may contain several formations belonging to the Sinian,late Early Cambrian,MiddleLate Cambrian and Early Ordovician respectively and needs to be revisedThe zone fossil Eoredlichia of middle Early Cambrian of South China found by Fan Guolin(1989) from the Pochengshan Formation has been falsified and is here considered as a member of Family Protolenidae Richtar et Richter, 1948 belonging to the middlelate Early Cambrian
出处
《西北地质》
CAS
CSCD
2003年第1期84-86,共3页
Northwestern Geology
