Sperling, E.A., Melchin, M.J., Fraser, T., Stockey, R.G., Farrell, U.C., Bhajan, L., Brunoir, T.N., Cole, D.B., Gill, B.C., Lenz, A., Loydell, D.K., Malinowski, J., Miller, A.J., Plaza-Torres, S., Bock, B., Rooney, A.D., Tecklenburg, S.A., Vogel, J.M., Planavsky, N.J., Strauss, J.V. (2021). A long-term record of early to mid-Paleozoic marine redox change. Science Advances