Recently, Dr. ZHANG Yinggang, a postdoctoral researcher in Professor ZHU Maoyan’s group at the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (NIGPAS), in collaboration with Prof. YANG Tao (Nanjing University), Prof. HE Tianchen (Hohai University), and Profs. Benjamin Mills and Robert Newton (University of Leeds, UK), has identified the shoaling of deep anoxic waters as the primary driver of the ROECE event and its associated biological turnover. The findings were recently published in the international journal Global and Planetary Change.