1. Index of generic names of fossil plants, 1820–1950;Andrews;U.S. Geol. Surv. Bull.,1955
2. Morphology and dispersal potential of wind-dispersed diaspores of neotropical trees;Augspurger;Am. J. Bot.,1986
3. Anacardiaceae: Rhoideae: Astronium;Barkley;Phytologia,1968
4. Plant distribution as seen from plant dispersal: general principles and basic modes of plant dispersal;Berg;Sonderb. Naturwiss. Ver Hamb.,1983
5. The Lower Eocene floras of southeastern North America;Berry;U.S. Geol. Surv. Prof. Pap.,1916