Latitude affects continental acidity in the Smithian–Spathian boundary biotic crisis
Author(s): Barrenechea, J.F., Borruel-Abadía, V., Galán-Abellán, A.B., López-Gómez, J., Esterle, J., McCann, T., de la Horra, R., Ronchi, A., Gianolla, P., Luque, F.J., Rossi, V.M., Paterson, N.W., Smith, R.M.H., Wolvaardt, D., Brookfield, M.E., Bourquin, S. and Ubide, T.