Initial Study of Biofacies Characteristics of Sinoceras Formation in Wansheng District of Chongqing

This paper conducts further study in sedimentary environment of Ordovician and living environment of Sinoceras in Wansheng Stone Forest through the analysis of biofacies characteristic of Sinoceras of this district. Combined with the study of mollusk growth pattern, this paper initially studies the reason why Sinoceras has large individual scale.