@article{Patarroyo:129388,
      author        = "Patarroyo, German D. and Kochhann, Karlos G. D. and
                       Guerra, Rodrigo M. and Alegret, Laia and Ceolin, Daiane and
                       Torres, José M.",
      title         = "{Maastrichtian microfossils of the Shallow Marine Umir
                       Formation, Northeastern Colombia}",
      year          = "2023",
}