1. Berry, E. W. 1922. Pliocene fossil plants from Eastern Bolivia. Johns Hopkins Univ. Stud. Geol. 4: 178, Pl VIII, figs 5–11.
2. Berry, E. W. 1924a. Fossil fruits from the Eastern Andes of Colombia. Bull. Torrey Bot. Club 51: 64, figs 20–22.
3. Berry, E. W. 1924b. New tertic species of Anacardium and Vantanea from Colombia. Pan Amer. Geol. 42: 259, pls. 1–5.
4. Berry, E. W. 1929a. Tertiary fossil plants from Colombia, South America. Proc. U. S. Natl. Mus. 75, art. 24, pp1–12, pls. 1–5.
5. Berry, E. W. 1929b. Fossil fruits in the Ancon sandstone of Ecuador. J. Paleontol. 3: 300, figs 4, 5.