摘要
四川宣汉、万源、旺苍及陕西镇巴三叠纪有孔虫产于中统雷口坡组,下统嘉陵江组及飞仙关组上部.根据有孔虫的分布,划分下统为两个带,5个亚带,中统1个带,并讨论了其对比问题.
The foraminifera described in the present paper were collected from Scythian and Anisian in the Xuanhan, Wanyuan and Wancang Counties of Sichuan and the Zhenba County of Shaanxi. Since Triassic foraminifera in this region have been hitherto unknown, the present material might be of some biogeographical and biostratigraphical value.
The Triassic strata in northeastern Sichuan and southern Shaanxi as shown by the sections from which the foraminifera were obtained are recognized as follows:
Middle Triassic Anisian
Leikoupo Formation
This consists mainly of grey limestone and dolomitic limestone. The limestone yields Lituotuba sp. (from Renjiawan, Dukou, Xuanhan County, Sichuan) and Glomospira densa (Pantic) and Meandrospira dinaria Kochansky-Devide et Pantic (from Huafangzi, Jinxi, Wangcang County, Sichuan).
出处
《古生物学报》
CAS
CSCD
北大核心
1993年第2期170-187,271-274,共18页
Acta Palaeontologica Sinica
