@misc{indiciae0fa7ad86a846,
  title = {Calibration of the latest Eocene-Oligocene geomagnetic polarity time scale using 40 Ar/ 39 Ar dated ignimbrites},
  author = {W. C. McIntosh and J. W. Geissman and C.E. Chapin and Michael J. Kunk and Christopher D. Henry},
  year = {1992},
  doi = {10.1130/0091-7613(1992)020<0459:cotleo>2.3.co;2},
  url = {https://pubs.usgs.gov/publication/70207641},
  note = {Source identifier: 70207641}
}