@misc{indiciae16a40ae57454,
  title = {Marine trace fossils in the Upper Jurassic Bluff Sandstone, southeastern Utah},
  author = {Robert Brett O'Sullivan and John O. Maberry},
  year = {1975},
  doi = {10.3133/b1395i},
  url = {https://pubs.usgs.gov/publication/b1395I},
  note = {Source identifier: b1395I}
}