@misc{indiciaef01e8fabc46b,
  title = {Testing the limits of Paleozoic chronostratigraphic correlation via high-resolution (<500 k.y.) integrated conodont, graptolite, and carbon isotope (δ 13 C carb ) biochemostratigraphy across the Llandovery–Wenlock (Silurian) boundary: Is a unified Phanerozoic time scale achievable?},
  author = {Bradley D. Cramer and David K. Loydell and Christian Samtleben and Axel Munnecke and Dimitri Kaljo and Peep Mannik and Tonu Martma and Lennart Jeppsson and Mark A. Kleffner and James E. Barrick and Craig A. Johnson and Poul Emsbo and Michael M. Joachimski and Torsten Bickert and Matthew R. Saltzman},
  year = {2010},
  doi = {10.1130/b26602.1},
  url = {https://pubs.usgs.gov/publication/70036341},
  note = {Source identifier: 70036341}
}