@misc{indiciae5eff9b438c85,
  title = {An integrated chronostratigraphic data system for the twenty-first century},
  author = {P.J. Sikora and James G. Ogg and A. Gary and C. Cervato and Felix Gradstein and B.T. Huber and C. Marshall and J.A. Stein and B. Wardlaw},
  year = {2006},
  doi = {10.1130/2006.2397(04)},
  url = {https://pubs.usgs.gov/publication/70035439},
  note = {Source identifier: 70035439}
}