@misc{indiciaef86d5951df65,
  title = {Catastrophically buried middle Pennsylvanian sigillaria and calamitean sphenopsids from Indiana, USA: What kind of vegetation was this?},
  author = {William A. DiMichele and W.J. Nelson and S. Elrick and P.R. Ames},
  year = {2009},
  doi = {10.2110/palo.2008.p08-051r},
  url = {https://pubs.usgs.gov/publication/70035742},
  note = {Source identifier: 70035742}
}