@misc{indiciaea15b14f53c83,
  title = {Alpha, beta, or gamma: where does all the diversity go?},
  author = {Sepkoski, J. J. Jr and Sepkoski JJ, J. r.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/20040120340},
  note = {Source identifier: 20040120340}
}