@misc{indiciaeddb215649b76,
  title = {Oligocene age of the classic Belén fruit and seed assemblage of north coastal Peru based on diatom biostratigraphy},
  author = {Steven R. Manchester and Fabiany Herrera and Elisabeth Fourtainer and John A. Barron and Jean-Noel Martinez},
  year = {2012},
  doi = {10.1086/665797},
  url = {https://pubs.usgs.gov/publication/70048040},
  note = {Source identifier: 70048040}
}