Akhtar, A.A. & Santi, L.M. & Griffiths, M.L. & Becker, M. & Eagle, R.A. & Kim, S. & Kocsis, L. & Rosenthal, Y. & Higgins, J.A. (2020)
A record of the delta Ca-44/40 and Sr of seawater over the last 100 million years from fossil elasmobranch tooth enamel.
Earth and Planetary Science Letters, 543, Article 116354 DOI: 10.1016/j.epsl.2020.116354