@misc{indiciae01aae24bc481, title = {Seawater calcium isotope ratios across the Eocene-Oligocene transition}, author = {E.M. Griffith and A. Paytan and A. Eisenhauer and Thomas D. Bullen and E. Thomas}, year = {2011}, doi = {10.1130/g31872.1}, url = {https://pubs.usgs.gov/publication/70036486}, note = {Source identifier: 70036486} }