The role of marine oxygenation/de-oxygenation in biological radiations and extinctions during the early Paleozoic

Junpeng Zhang1, Charles W Diamond1, Chenyi Tu1, Xiang Fang2, Yuandong Zhang2 and Timothy W Lyons1, (1)University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, (2)Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China