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上饶县清水乡林山组、罗坳组剖面出露完好、化石丰富、顶底齐全、地层连续，是赣东北新发现的一条下中侏罗统最佳剖面，有１３个化石层位，划分成７个岩性段。野外进行了接触关系、沉积特征、古气候特征资料搜集，室内进行了植物、双壳与叶肢介化石详细鉴定，确认１—５段含Ｐｔｉｌｏ－ｐｈｙｌｕｍ－Ｃｏｎｉｏｐｔｅｒｉｓ植物组合、Ｐｓｅｕｄｏｃａｒｄｉｎｉａ－Ｔｕｔｕｅｌａ双壳组合的含煤地层为林山组，时代为早侏罗世中晚期，６—７段含自流井真叶肢介动物群的杂色砂页岩为罗坳组，时代为中侏罗世。
The sections of Linshan Formation and Luo-Au Formation in Qingshui Township of Shangrao County are intact with abundant fossils and complete top and bottom strata. They are the best section of Lower Middle Jurassic newly discovered in northeastern Jiangxi and have 13 fossil beds divided into 7 lithology segments. The contact relationships, sedimentary characteristics and palaeoclimate data were collected from the field. Specimens of plants, bivalves and leaves were identified in the laboratory. It was confirmed that the Ptilo-phylum-Coniopteris plants from the first to the fifth were combined with the Pseudocardinia-Tutuela bivalve The coal-bearing strata are of the Lin Shan Formation, dating from the middle of the Early Jurassic, and the variegated sand shale with the ventrally ventrally meshed veins in stages 6-7 is the Luo-Au Formation and the Middle Jurassic.