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关于四川盆地的三叠系地层,早在1933年时,著名的古生物学者尹赞勋先生进行了系统的研究,以后的年代中许德佑在这方面的贡献特别大,以他为代表的关于四川三叠系分层的意见(即川南之嘉陵江灰岩及飞仙关页岩,分别相当于川东鄂西的巴东统及大冶灰岩),一直延用到现在。由此造成地史上岩相交互变化的范例。进行过研究的还有顾知微、赵家骧、田奇(王雋)、李春昱及法国人巴特等人。他们讨论了关于地层,在生物及岩相等问题。
As for the Triassic strata in the Sichuan Basin, as early as 1933, the famous paleontologist Mr. Yin Zanxun conducted a systematic study. In the later years, Xu Deyou made a particularly great contribution to this area. With his representative work on the Sichuan Triassic Stratified views (that is, the Jialingjiang limestone and Feixianguan shale in the south of Sichuan Province are equivalent to the Badong System and the Daye limestone in western Sichuan and western Hubei Province, respectively) have been extended till now. As a result, the lithofacies in the history have been interactively transformed. There are studies conducted by Gu Zhiwei, Zhao Jiali, Tian Qi (Wang Juan), Li Chunyu and French Pat and others. They discussed issues related to stratigraphy, biology and rock faulting.