摘要
笔者介绍云南宁蒗油果木地区中二叠世含筑蜓地层，地层的岩石学及古生物特征，并就各期沉积环境作一简要分析。对筑蜓类动物群进行详细研究，记述了１３属４８种。依据筑·蜓类的演化，自上而下建立５个筑蜓化石带，分别为：（５）Ｎｅｏｓｃｈｗａｇｅｒｉｎａ延限带；（４）Ｓｃｈｗａｇｅｒｉｎａｐｓｅｕｄｏｃｈｉｈｓｉ－ａｅｎｓｉｓ－Ｓｃｈｗａｇｅｒｉｎａｌｏｎｇｉｐｅｒｔｉｃａ带；（３）Ｎａｎｋｉｎｅｌａｏｒｂｉｃｕｌａｒｉａ－Ｐｉｓｏｌｉｎａｓｕｂｓｐｈａｅｒｉｃａ带；（２）Ｍｉｓ－ｅｌｉｎａｃｌａｕｄｉａｏ带；（１）Ｓｔａｆｆｅｌａｍｏｅｌｅｒａｎａ带，同时讨论筑蜓类动物群的特征，并与国内相关地层进行了对比。
AbstractThe fusulinid desoribed in this paper were collected from the middle Permian at Youguomu, Linlang, Yunnan. The strata is meters composed of carbonate rocks. Ita total thtckness is 21178 mainly .In this strate there are three formations including the Liagshan formation with a thickness of 1139m,the Chihsia Formation with a thickness of 6953m and the Maokou Formation with a thickness of 13086m, The strata carry rich and varied fossils including fusulinids, foraminiferas, corals and brachiopods ets. the fusulininds described and illustrated here comprise 49 species (ineluding I new species), belonging to 13 genera. five Fusulinid zone are established in decending order as follows:(5) Neoschwagerina Zone (4)Schwagerina pseudocnihsiaensis-Schwagerina longipertica Zone (3)Nanginella orbicularia-Pisolina subsphaerica Zone (2)Misellina clauaiae Zone (1)Staffella moellerana Zone
出处
《云南地质》
1998年第2期175-190,共16页
Yunnan Geology
