@misc{indiciaee90d335965ee,
  title = {North American Commission on Stratigraphic Nomenclature Note 69 – Application for addition of subseries/subepoch to the North American Stratigraphic Code},
  author = {Marie-Pierre Aubry and Richard H. Fluegeman and Lucy E. Edwards and Brian R. Pratt and Carlton E. Brett},
  year = {2019},
  url = {https://pubs.usgs.gov/publication/70202589},
  note = {Source identifier: 70202589}
}