@misc{indiciae9d5d65b24182,
  title = {Fusulinidae from the Graford Formation and Winchell Limestone, Canyon Group, Upper Pennsylvanian, in Brown County, Texas},
  author = {D.A. Myers},
  year = {1967},
  doi = {10.3133/pp573c},
  url = {https://pubs.usgs.gov/publication/pp573C},
  note = {Source identifier: pp573C}
}