@misc{indiciaef30ff8d1dc7f,
  title = {Index of generic names of fossil plants, 1974-1978 : based on the Compendium index of paleobotany of the U.S. Geological Survey},
  author = {Arthur Dwight Watt},
  year = {1982},
  doi = {10.3133/b1517},
  url = {https://pubs.usgs.gov/publication/b1517},
  note = {Source identifier: b1517}
}