@misc{indiciae21f7026c297d,
  title = {Contributions to the knowledge of the older Mesozoic flora of Virginia},
  author = {William Morris Fontaine},
  year = {1883},
  doi = {10.3133/m6},
  url = {https://pubs.usgs.gov/publication/m6},
  note = {Source identifier: m6}
}