Recently some Brachiopoda, coral, gastropoda, phytolite is identified by Nanjing Institute of Geology and Palaeontology China Academy of Sciences.The age belongs to Late Carboniferous epoch.

在该层中发现了一些腕足、、腹足、植物化，经中国科学院质古生物研究所鉴定，时代属晚炭世晚期。