@misc{indiciae6ff8e3993bf2,
  title = {Late Pennsylvanian climate changes and palynomorph extinctions},
  author = {R.M. Kosanke and C. B. Cecil},
  year = {1996},
  doi = {10.1016/0034-6667(95)00027-5},
  url = {https://pubs.usgs.gov/publication/70017702},
  note = {Source identifier: 70017702}
}