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塔里木盆地下志留统塔塔埃尔塔格组主要由潮坪沉积组成。根据遗迹化石与沉积特征，固底控制的遗迹化石Ｇｙｒｏｌｉｔｈｅｓ常常与沉积性不连续面（海泛面）有关，潮控滨线中的准层序由三类岩相组成，其中含砾砂岩相（相Ａ）为潮道沉积，未见遗迹化石；含交错层理细砂岩相（相Ｂ）为砂坪沉积，仅见少量的遗迹化石Ｓｋｏｌｉｔｈｏｓ；强生物扰动粉砂岩、泥岩相（相Ｃ）为砂、泥混合坪沉积，发育有丰富的遗迹化石，代表Ｓｋｏｌｉｔｈｏｓ－Ｃｒｕｚｉａｎａ混合遗迹相。
The Lower Silurian Tatelharta Formation in the Tarim Basin is mainly composed of tidal flat sediments. According to the trace fossils and sedimentary features, Gyrolithes, a fixed-bottom controlled fossil, is often associated with sedimentary discontinuities (sea surface). The quasi-sequence in the tidal flats consists of three types of lithofacies, of which gravelly sandstone facies Phase A) is a tidal channel sedimentation, no trace fossils are found; the interbedded stratigraphic fine sandstone facies (facies B) is sand flat sediment, with only a few trace fossils Skolithos; strong bioturbated siltstone and mudstone facies (facies C) , Mud mixed flat deposition, the development of rich trace fossils, on behalf of Skolithos-Cruziana mixed trace phase.