R.  Rivera, Lawson, J., Harvey, M., and Nehm, R. H., ?Mollusc assemblage variability in the Río Gurabo section (Dominican Republic Neogene): implications for species-level stasis?, in Evolutionary stasis and change in the Dominican Republic Neogene, R. H.  Nehn and Budd, A. F., Eds. Springer, 2008, pp. 225-251.