土城子组（Tuchengzi Fm）曾称土城子砾岩层。时代属中侏罗世晚期至晚侏罗世早期。主要分布于辽宁西部诸盆地。命名剖面位于辽宁北票土城子。属河湖相沉积，下段为紫红色凝灰质页岩夹少许灰绿色粉砂岩及粉砂质泥岩，含叶肢介及孢粉化石；中段为灰紫色泥砂质胶结砾岩夹砂岩；上段为紫红、灰绿色凝灰质砂岩，偶夹砾岩及页岩，具大型交错层理或板状层理。
In this paper the possible provenances of the Tuchengzi Formation conglomerate are discussed in detail.
结合盆地周围的地层、构造特征，对牛营子—郭家店盆地土城子组砾岩可能的物源区进行了分析和讨论。
参考来源 - 辽西牛营子—郭家店盆地晚侏罗世土城子组同构造沉积研究·2,447,543篇论文数据，部分数据来源于NoteExpress
辽西金-羊（金岭寺-羊山）盆地土城子组为一套红色陆相碎屑岩组合。
The Tuchengzi formation in Jinlingsi-Yangshan basin, Western Liaoning Province is composed of a series of red continental detrital rocks.
辽西金羊盆地南部陆相红层土城子组较为发育，其沉积物具明显旋回性。
In the south of Jinlinsi Yangshan basin of West Liaoning, continental red beds of Tuchengzi F. developed well with obvious cyclic features.
承德地区土城子组的沉积地层，主要保存在两个地区，一处为承德向斜，另一处为古北口断层的南部紧邻断层地区，即分别命名的承德盆地和古北口盆地内。
The sedimentation of Tuchengzi Formation was mainly preserved in Chengde syncline and in the south part of Gubeikou fault in Chengde area, namely Chengde basin and Gubeikou basin, respectively.
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