Late Paleocene fossils from the Cerrejón Formation, Colombia, are the earliest record of Neotropical rainforest.

MLA

Wing, Scott L., et al. “Late Paleocene Fossils from the Cerrejón Formation, Colombia, Are the Earliest Record of Neotropical Rainforest.” Proceedings of the National Academy of Sciences of the United States of America, vol. 106, no. 44, Nov. 2009, pp. 18627–32. EBSCOhost, https://doi.org/10.1073/pnas.0905130106.

APA

Wing, S. L., Herrera, F., Jaramillo, C. A., Gómez-Navarro, C., Wilf, P., & Labandeira, C. C. (2009). Late Paleocene fossils from the Cerrejón Formation, Colombia, are the earliest record of Neotropical rainforest. Proceedings of the National Academy of Sciences of the United States of America, 106(44), 18627–18632. https://doi.org/10.1073/pnas.0905130106

Chicago

Wing, Scott L., Fabiany Herrera, Carlos A. Jaramillo, Carolina Gómez-Navarro, Peter Wilf, and Conrad C. Labandeira. 2009. “Late Paleocene Fossils from the Cerrejón Formation, Colombia, Are the Earliest Record of Neotropical Rainforest.” Proceedings of the National Academy of Sciences of the United States of America 106 (44): 18627–32. doi:10.1073/pnas.0905130106.