吉林延边地区二叠系大蒜沟组■类化石

PERMIAN FUSULINIDS FROM THE DASUANGOU FORMATION IN YANBIAN COUNTY, JILIN

本文依据吉林延边地区二叠系?类化石新建大蒜沟组,共发现?类化石6属14种,建立了两个化石带,即Pseudodoliolina带和Parafusulina带,Pseudodoliolina为茅口早中期,相当于南方的Cancellina至Neoschwagerina带。Parafusulina为栖霞晚期,相当于南方的Parafusu-lina multiseptata带,本文只描述了两个新种:Metadoliolina yanbianensis,Parafusulinaregularis。这些?化石的发现对吉林地区及东北北部槽区二叠系的地层划分有重要意义。

Fusulinids from the lower Permian Dasuangou Formation in Jilin, YanbianCounty described and illustrated in this paper comprise B genera and 14 species(including 2 new species). Two fusulinid zones are established in descendingorder as follows: 2. Fseudodoliolina zone; 1. Parafusulina zone. The Pseudodoliolinazone belonging to Early Maokouan is similar to the Cancellina to Neoschwagerinazone of South China. The Parafusulina zone belonging to Late Chihshian is similarto the Parafusulina multiseptata zone of South China.