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东特提斯海的一隅——中国南方(包括华南、西南)的广大地区发育着十分良好的、富含多种门类化石、且具各种不同沉积岩相的三叠纪地层。它们与西特提斯海域的欧洲大陆上的三叠系,可以进行广泛地对比。所不同的是,欧洲大陆的三叠纪地层相仅分为德国相和阿尔卑斯相;而我国南方的三叠纪地层相要复杂和丰富得多,不仅有地台型的,也有地槽型的,根据沉积组合序列和沉积相,大致包含如下诸多相型:
A corner of the Eastern Tethys Sea Triassic formations rich in various types of fossils with various sedimentary facies are well developed in vast areas of southern China (including South China and Southwest China). They are comparable to the Triassic series on the European continent of the Western Tethys area. The difference is that the continental Triassic strata in continental Europe are divided into only the German and Alpine facies. The Triassic strata in the southern part of our country are more complicated and more abundant than terraces and terraces , According to sedimentary combination of sequences and sedimentary facies, generally contains the following phase patterns: