TY - JOUR A1 - Yu Wen JO - Stratigraphy and Palaeontology of Systemic Boundaries in China: Precambrian–Cambrian Boundary C1 - Nanjing: Nanjing University Publishing House, pp. 19-344 TI - Yangtze Micromolluscan Fauna in Yangtze Region of China with Notes on the Precambrian–Cambrian Boundary UR - https://www.molluscabase.org/aphia.php?p=sourcedetails&id=381183 PY - 1987 Y2 - 2024-03-29 ER -