石油与天然气地质 ›› 1981, Vol. 2 ›› Issue (2): 123-140.doi: 10.11743/ogg19810204

• 论文 • 上一篇    下一篇

贵州志留系牙形刺生物地层及新属种

周希云, 翟志强, 鲜思远   

  1. 地质部第八普查勘探大队
  • 出版日期:1981-06-25 发布日期:2012-01-16

ON THE SILURIAN CONODONT BIOSTRATIGRAPHY,NEW GENERA AND SPECIES IN GUIZHOU PROVINCE

Zhou Xiyun, Zhai Zhiqiang, Xian Siyuan   

  1. The 8th Petroleum Prospecting and Exploration Brigade.Ministry of Geology
  • Online:1981-06-25 Published:2012-01-16

PDF (PC)

367

被引次数

53

摘要：

本文首次对贵州志留系牙形刺进行了研究,3500粒标本分属于42个属93个种.自下而上建立了 Spathognathodus obesus 组合带、第Ⅰ间隔带(A 带)、Spathognathodus parahassi-Spathognathodus guizhouensis 组合带、Spathognathodus celloni 组合带和第Ⅱ间隔带(B 带)等序列.根据与欧美同期牙形刺对比,认为前四个带属早志留世,B 带属中志留世早期。描述了新属7个,新种35个.

Abstract:

This paper deals with the conodonts collected from the Lower-Middle Silu-rian in Guizhou Province,a total of 93 species in 42 different genera havebeen established here,in which 35 new species and 7 new genera aredescribed.The stratigraphical distribution of conodonts allows the recognition of5 assemblage and interval zones in ascending order(See Table 2):1.Spathognathodus obesus ass.zone;2.Interval I(A zone);3.Spathognathodus parahassi-Sp.guizhouensis ass.zone;4.Spathognathodus celloni ass.zone and 5.Interval Ⅱ(B zone).On the basis of characteristic of the Conodont fauna and correlation withconodont sequences of Europe and North America(See Table 3),the Spa-thognathodus obesus ass.zone—Sp.celloni ass.zone are Early Silurian in ageand Interval Ⅱ zone is Middle Silurian.