@misc{indiciaed9c3b9157332,
  title = {Distal signatures of Late Ordovician oceanic anoxia\—New data from a classic epeiric ramp transect},
  author = {Patrick I. McLaughlin and Norlene Emerson and Brian Witzke and Bryan Sell and Poul Emsbo},
  year = {2011},
  url = {https://pubs.usgs.gov/publication/70006073},
  note = {Source identifier: 70006073}
}