Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescalesDOI: info:10.1016/j.epsl.2016.07.041v. 452272–280
Clyde, William C., Ramezani, Jahandar, Johnson, Kirk R., Bowring, Samuel A., and Jones, Matthew M. 2016. "Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescales." Earth and Planetary Science Letters, 452 272–280. https://doi.org/10.1016/j.epsl.2016.07.041.