A fruit and leaves of Rhamnaceous affinities from the late Cretaceous (Maastrichtian) of ColombiaDOI: info:10.3732/ajb.0900093v. 97No. 171–79
Correa, Edwin, Jaramillo, Carlos A., Manchester, Steven, and Gutierrez, Mauricio. 2010. "A fruit and leaves of Rhamnaceous affinities from the late Cretaceous (Maastrichtian) of Colombia." American Journal of Botany, 97, (1) 71–79. https://doi.org/10.3732/ajb.0900093.