@misc{indiciae8d7a87e38b79,
  title = {The flora of the New Albany shale: Part 1, Diichnia kentuckiensis, a new representative of the Calamopityeae},
  author = {C.B. Read},
  year = {1936},
  doi = {10.3133/pp185h},
  url = {https://pubs.usgs.gov/publication/pp185H},
  note = {Source identifier: pp185H}
}