Project 4356: M. A. Gandolfo, A. A. Farke, E. J. Hermsen, M. C. Zamaloa, K. C. Nixon, C. C. González, P. Wilf, N. R. Cúneo, K. R. Johnson. 2011. Oldest Known Eucalyptus Macrofossils Are from South America. PLOS ONE. 6 (6):e21084.
This project has 9 specimens.