@misc{indiciae480761fb1497,
  title = {The conodont Iapetognathus and its value for defining the base of the Ordovician System},
  author = {J. E. Miller and John E. Repetski and R. S. Nicoll and G. S. Nowlan and R. L. Ethington},
  year = {2014},
  doi = {10.1080/11035897.2013.862851},
  url = {https://pubs.usgs.gov/publication/70156838},
  note = {Source identifier: 70156838}
}