@misc{indiciaea9cae0db3f02,
  title = {Significance of nearshore trace-fossil assemblages of the cambro-ordovician deadwood formation and Aladdin Sandstone, South Dakota},
  author = {T.M. Stanley and R.M. Feldmann},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/70020696},
  note = {Source identifier: 70020696}
}