@misc{indiciae82fbaaba6eaf,
  title = {Ordovician Chazyan classification in Vermont},
  author = {M. Kay and W. M. Cady},
  year = {1947},
  doi = {10.1126/science.105.2736.601.a},
  url = {https://pubs.usgs.gov/publication/70010875},
  note = {Source identifier: 70010875}
}